Answers

Subtract 15/32 from 8/21

8/21 - 15/32 is -59/672.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 32 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 21 × 32 = 672,
   8/21 = 8 × 32/21 × 32 = 256/672
3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
   15/32 = 15 × 21/32 × 21 = 315/672
4. Subtract the two like fractions:
   256/672 - 315/672 = 256 - 315/672 = -59/672

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