Fractions Quarters Hard — Set 23

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                "numerator1": 5,
                "denominator1": 10,
                "numerator2": 7,
                "denominator2": 10,
                "question": "5/10 × 7/10 = ?",
                "answer": "7/20",
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                "type": "fractions",
                "subType": "simplify",
                "numerator1": 3,
                "denominator1": 5,
                "numerator2": 2,
                "denominator2": 3,
                "question": "Simplify 12/20 = ?",
                "answer": "3/5",
                "correctAnswer": "3/5",
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                "id": 3,
                "type": "fractions",
                "subType": "add",
                "numerator1": 13,
                "denominator1": 14,
                "numerator2": 4,
                "denominator2": 14,
                "question": "13/14 + 4/14 = ?",
                "answer": "17/14",
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                "id": 4,
                "type": "fractions",
                "subType": "divide",
                "numerator1": 1,
                "denominator1": 3,
                "numerator2": 1,
                "denominator2": 4,
                "question": "1/3 ÷ 1/4 = ?",
                "answer": "4/3",
                "correctAnswer": "4/3",
                "difficulty": "hard"
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            {
                "id": 5,
                "type": "fractions",
                "subType": "subtract",
                "numerator1": 1,
                "denominator1": 2,
                "numerator2": 1,
                "denominator2": 4,
                "question": "1/2 - 1/4 = ?",
                "answer": "1/4",
                "correctAnswer": "1/4",
                "difficulty": "hard"
            },
            {
                "id": 6,
                "type": "fractions",
                "subType": "add",
                "numerator1": 10,
                "denominator1": 16,
                "numerator2": 5,
                "denominator2": 15,
                "question": "10/16 + 5/15 = ?",
                "answer": "23/24",
                "correctAnswer": "23/24",
                "difficulty": "hard"
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            {
                "id": 7,
                "type": "fractions",
                "subType": "add",
                "numerator1": 7,
                "denominator1": 8,
                "numerator2": 9,
                "denominator2": 13,
                "question": "7/8 + 9/13 = ?",
                "answer": "163/104",
                "correctAnswer": "163/104",
                "difficulty": "hard"
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                "id": 8,
                "type": "fractions",
                "subType": "simplify",
                "numerator1": 7,
                "denominator1": 13,
                "numerator2": 8,
                "denominator2": 16,
                "question": "Simplify 28/52 = ?",
                "answer": "7/13",
                "correctAnswer": "7/13",
                "difficulty": "hard"
            },
            {
                "id": 10,
                "type": "fractions",
                "subType": "multiply",
                "numerator1": 10,
                "denominator1": 13,
                "numerator2": 3,
                "denominator2": 4,
                "question": "10/13 × 3/4 = ?",
                "answer": "15/26",
                "correctAnswer": "15/26",
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            {
                "id": 11,
                "type": "fractions",
                "subType": "divide",
                "numerator1": 2,
                "denominator1": 11,
                "numerator2": 7,
                "denominator2": 8,
                "question": "2/11 ÷ 7/8 = ?",
                "answer": "16/77",
                "correctAnswer": "16/77",
                "difficulty": "hard"
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            {
                "id": 12,
                "type": "fractions",
                "subType": "add",
                "numerator1": 1,
                "denominator1": 2,
                "numerator2": 2,
                "denominator2": 5,
                "question": "1/2 + 2/5 = ?",
                "answer": "9/10",
                "correctAnswer": "9/10",
                "difficulty": "hard"
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                "id": 13,
                "type": "fractions",
                "subType": "add",
                "numerator1": 5,
                "denominator1": 6,
                "numerator2": 2,
                "denominator2": 4,
                "question": "5/6 + 2/4 = ?",
                "answer": "4/3",
                "correctAnswer": "4/3",
                "difficulty": "hard"
            },
            {
                "id": 14,
                "type": "fractions",
                "subType": "add",
                "numerator1": 5,
                "denominator1": 15,
                "numerator2": 9,
                "denominator2": 10,
                "question": "5/15 + 9/10 = ?",
                "answer": "37/30",
                "correctAnswer": "37/30",
                "difficulty": "hard"
            },
            {
                "id": 15,
                "type": "fractions",
                "subType": "divide",
                "numerator1": 12,
                "denominator1": 15,
                "numerator2": 3,
                "denominator2": 14,
                "question": "12/15 ÷ 3/14 = ?",
                "answer": "56/15",
                "correctAnswer": "56/15",
                "difficulty": "hard"
            },
            {
                "id": 16,
                "type": "fractions",
                "subType": "divide",
                "numerator1": 1,
                "denominator1": 6,
                "numerator2": 1,
                "denominator2": 2,
                "question": "1/6 ÷ 1/2 = ?",
                "answer": "1/3",
                "correctAnswer": "1/3",
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                "id": 17,
                "type": "fractions",
                "subType": "divide",
                "numerator1": 4,
                "denominator1": 9,
                "numerator2": 1,
                "denominator2": 16,
                "question": "4/9 ÷ 1/16 = ?",
                "answer": "64/9",
                "correctAnswer": "64/9",
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                "id": 18,
                "type": "fractions",
                "subType": "multiply",
                "numerator1": 1,
                "denominator1": 3,
                "numerator2": 5,
                "denominator2": 15,
                "question": "1/3 × 5/15 = ?",
                "answer": "1/9",
                "correctAnswer": "1/9",
                "difficulty": "hard"
            },
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                "id": 19,
                "type": "fractions",
                "subType": "multiply",
                "numerator1": 3,
                "denominator1": 13,
                "numerator2": 10,
                "denominator2": 14,
                "question": "3/13 × 10/14 = ?",
                "answer": "15/91",
                "correctAnswer": "15/91",
                "difficulty": "hard"
            },
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                "id": 20,
                "type": "fractions",
                "subType": "simplify",
                "numerator1": 5,
                "denominator1": 7,
                "numerator2": 2,
                "denominator2": 3,
                "question": "Simplify 20/28 = ?",
                "answer": "5/7",
                "correctAnswer": "5/7",
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