Answers

Subtract 21/60 from 20/15

1^st number: 1 5/15, 2^nd number: 21/60

20/15 - 21/60 is 59/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 15 × 4 = 60,
   20/15 = 20 × 4/15 × 4 = 80/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   21/60 = 21 × 1/60 × 1 = 21/60
4. Subtract the two like fractions:
   80/60 - 21/60 = 80 - 21/60 = 59/60

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