Answers

Subtract 27/98 from 28/21

1^st number: 1 7/21, 2^nd number: 27/98

28/21 - 27/98 is 311/294.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 21 × 14 = 294,
   28/21 = 28 × 14/21 × 14 = 392/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   27/98 = 27 × 3/98 × 3 = 81/294
4. Subtract the two like fractions:
   392/294 - 81/294 = 392 - 81/294 = 311/294
5. In mixed form: 117/294

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