Answers

Subtract 36/21 from 81/96

1^st number: 81/96, 2^nd number: 1 15/21

81/96 - 36/21 is -195/224.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 21 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 96 × 7 = 672,
   81/96 = 81 × 7/96 × 7 = 567/672
3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
   36/21 = 36 × 32/21 × 32 = 1152/672
4. Subtract the two like fractions:
   567/672 - 1152/672 = 567 - 1152/672 = -585/672
5. After reducing the fraction, the answer is -195/224

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