Answers

Subtract 42/7 from 63/28

1^st number: 2 7/28, 2^nd number: 6 0/7

63/28 - 42/7 is -15/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 7 is 28
   
   Next, find the equivalent fraction of both fractional numbers with denominator 28
2. For the 1st fraction, since 28 × 1 = 28,
   63/28 = 63 × 1/28 × 1 = 63/28
3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
   42/7 = 42 × 4/7 × 4 = 168/28
4. Subtract the two like fractions:
   63/28 - 168/28 = 63 - 168/28 = -105/28
5. After reducing the fraction, the answer is -15/4

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