hard Set 81 Form Exercise

9/11 - 1/11 = ?

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Answer: 8/11

SubType
subtract
Numerator1
9
Denominator1
11
Numerator2
1
Denominator2
11
Difficulty
hard

11/16 + 4/10 = ?

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Answer: 87/80

SubType
add
Numerator1
11
Denominator1
16
Numerator2
4
Denominator2
10
Difficulty
hard

6/10 × 12/16 = ?

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Answer: 9/20

SubType
multiply
Numerator1
6
Denominator1
10
Numerator2
12
Denominator2
16
Difficulty
hard

3/5 - 1/4 = ?

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Answer: 7/20

SubType
subtract
Numerator1
3
Denominator1
5
Numerator2
1
Denominator2
4
Difficulty
hard

1/2 - 1/7 = ?

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Answer: 5/14

SubType
subtract
Numerator1
1
Denominator1
2
Numerator2
1
Denominator2
7
Difficulty
hard

1/10 + 5/7 = ?

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Answer: 57/70

SubType
add
Numerator1
1
Denominator1
10
Numerator2
5
Denominator2
7
Difficulty
hard

3/13 × 3/6 = ?

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Answer: 3/26

SubType
multiply
Numerator1
3
Denominator1
13
Numerator2
3
Denominator2
6
Difficulty
hard

5/13 ÷ 3/9 = ?

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Answer: 15/13

SubType
divide
Numerator1
5
Denominator1
13
Numerator2
3
Denominator2
9
Difficulty
hard

5/7 - 2/5 = ?

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Answer: 11/35

SubType
subtract
Numerator1
5
Denominator1
7
Numerator2
2
Denominator2
5
Difficulty
hard

3/4 ÷ 1/12 = ?

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Answer: 9

SubType
divide
Numerator1
3
Denominator1
4
Numerator2
1
Denominator2
12
Difficulty
hard

8/13 - 2/10 = ?

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Answer: 27/65

SubType
subtract
Numerator1
8
Denominator1
13
Numerator2
2
Denominator2
10
Difficulty
hard

Simplify 15/24 = ?

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Answer: 5/8

SubType
simplify
Numerator1
5
Denominator1
8
Numerator2
4
Denominator2
7
Difficulty
hard

4/9 - 2/11 = ?

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Answer: 26/99

SubType
subtract
Numerator1
4
Denominator1
9
Numerator2
2
Denominator2
11
Difficulty
hard

1/6 - 1/8 = ?

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Answer: 1/24

SubType
subtract
Numerator1
1
Denominator1
6
Numerator2
1
Denominator2
8
Difficulty
hard

3/6 - 1/3 = ?

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Answer: 1/6

SubType
subtract
Numerator1
3
Denominator1
6
Numerator2
1
Denominator2
3
Difficulty
hard

3/5 + 4/12 = ?

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Answer: 14/15

SubType
add
Numerator1
3
Denominator1
5
Numerator2
4
Denominator2
12
Difficulty
hard

1/6 × 4/13 = ?

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Answer: 2/39

SubType
multiply
Numerator1
1
Denominator1
6
Numerator2
4
Denominator2
13
Difficulty
hard

Simplify 24/30 = ?

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Answer: 12/15

SubType
simplify
Numerator1
12
Denominator1
15
Numerator2
1
Denominator2
4
Difficulty
hard

4/5 × 2/12 = ?

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Answer: 2/15

SubType
multiply
Numerator1
4
Denominator1
5
Numerator2
2
Denominator2
12
Difficulty
hard

7/10 + 1/3 = ?

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Answer: 31/30

SubType
add
Numerator1
7
Denominator1
10
Numerator2
1
Denominator2
3
Difficulty
hard