Answers

Subtract 21/32 from 80/42

1^st number: 1 38/42, 2^nd number: 21/32

80/42 - 21/32 is 839/672.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 32 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 42 × 16 = 672,
   80/42 = 80 × 16/42 × 16 = 1280/672
3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
   21/32 = 21 × 21/32 × 21 = 441/672
4. Subtract the two like fractions:
   1280/672 - 441/672 = 1280 - 441/672 = 839/672
5. In mixed form: 1167/672

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