B Set 6 Unknown

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                "question": "4/6 ÷ 1/5 = ?",
                "answer": "10/3",
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                "id": 3,
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                "subType": "simplify",
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                "question": "Simplify 8/10 = ?",
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                "question": "3/5 × 1/2 = ?",
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                "id": 8,
                "type": "fractions",
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                "denominator2": 6,
                "question": "3/6 - 1/6 = ?",
                "answer": "1/3",
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                "id": 9,
                "type": "fractions",
                "subType": "multiply",
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                "question": "1/7 × 7/8 = ?",
                "answer": "1/8",
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                "id": 10,
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                "denominator1": 2,
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                "question": "1/2 ÷ 4/6 = ?",
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                "id": 11,
                "type": "fractions",
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                "question": "7/8 + 6/7 = ?",
                "answer": "97/56",
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                "id": 12,
                "type": "fractions",
                "subType": "subtract",
                "numerator1": 1,
                "denominator1": 2,
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                "denominator2": 2,
                "question": "1/2 - 1/2 = ?",
                "answer": "0",
                "correctAnswer": "0",
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                "id": 13,
                "type": "fractions",
                "subType": "subtract",
                "numerator1": 1,
                "denominator1": 2,
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                "denominator2": 3,
                "question": "1/2 - 1/3 = ?",
                "answer": "1/6",
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                "id": 14,
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                "numerator1": 3,
                "denominator1": 4,
                "numerator2": 2,
                "denominator2": 8,
                "question": "3/4 - 2/8 = ?",
                "answer": "1/2",
                "correctAnswer": "1/2",
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                "id": 15,
                "type": "fractions",
                "subType": "multiply",
                "numerator1": 1,
                "denominator1": 6,
                "numerator2": 2,
                "denominator2": 5,
                "question": "1/6 × 2/5 = ?",
                "answer": "1/15",
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                "numerator1": 5,
                "denominator1": 6,
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                "denominator2": 3,
                "question": "5/6 × 1/3 = ?",
                "answer": "5/18",
                "correctAnswer": "5/18",
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                "id": 17,
                "type": "fractions",
                "subType": "subtract",
                "numerator1": 4,
                "denominator1": 6,
                "numerator2": 2,
                "denominator2": 4,
                "question": "4/6 - 2/4 = ?",
                "answer": "1/6",
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                "denominator2": 2,
                "question": "6/7 ÷ 1/2 = ?",
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                "denominator2": 3,
                "question": "Simplify 3/21 = ?",
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                "denominator2": 6,
                "question": "3/7 + 4/6 = ?",
                "answer": "23/21",
                "correctAnswer": "23/21",
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