Answers

Subtract 63/28 from 35/21

1^st number: 1 14/21, 2^nd number: 2 7/28

35/21 - 63/28 is -7/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   35/21 = 35 × 4/21 × 4 = 140/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   63/28 = 63 × 3/28 × 3 = 189/84
4. Subtract the two like fractions:
   140/84 - 189/84 = 140 - 189/84 = -49/84
5. After reducing the fraction, the answer is -7/12

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