Solutions by everydaycalculation.com

1^{st} number: 2 0/2, 2^{nd} number: 5/7

42 - 57 is 97.

- Find the least common denominator or LCM of the two denominators:

LCM of 2 and 7 is**14**

Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,

42 = 4 × 72 × 7 = 2814 - Likewise, for the 2nd fraction, since 7 × 2 = 14,

57 = 5 × 27 × 2 = 1014 - Subtract the two like fractions:

2814 - 1014 = 28 - 1014 = 1814 - After reducing the fraction, the answer is 97
- In mixed form: 127

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