Answers

Subtract 10/15 from 21/75

21/75 - 10/15 is -29/75.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 15 is 75
   
   Next, find the equivalent fraction of both fractional numbers with denominator 75
2. For the 1st fraction, since 75 × 1 = 75,
   21/75 = 21 × 1/75 × 1 = 21/75
3. Likewise, for the 2nd fraction, since 15 × 5 = 75,
   10/15 = 10 × 5/15 × 5 = 50/75
4. Subtract the two like fractions:
   21/75 - 50/75 = 21 - 50/75 = -29/75

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