Answers

Subtract 63/28 from 49/70

1^st number: 49/70, 2^nd number: 2 7/28

49/70 - 63/28 is -31/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   49/70 = 49 × 2/70 × 2 = 98/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   63/28 = 63 × 5/28 × 5 = 315/140
4. Subtract the two like fractions:
   98/140 - 315/140 = 98 - 315/140 = -217/140
5. After reducing the fraction, the answer is -31/20

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