Answers

Subtract 81/28 from 42/96

1^st number: 42/96, 2^nd number: 2 25/28

42/96 - 81/28 is -275/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 28 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 96 × 7 = 672,
   42/96 = 42 × 7/96 × 7 = 294/672
3. Likewise, for the 2nd fraction, since 28 × 24 = 672,
   81/28 = 81 × 24/28 × 24 = 1944/672
4. Subtract the two like fractions:
   294/672 - 1944/672 = 294 - 1944/672 = -1650/672
5. After reducing the fraction, the answer is -275/112

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