Answers

Subtract 27/21 from 60/20

1^st number: 3 0/20, 2^nd number: 1 6/21

60/20 - 27/21 is 12/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 21 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   60/20 = 60 × 21/20 × 21 = 1260/420
3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
   27/21 = 27 × 20/21 × 20 = 540/420
4. Subtract the two like fractions:
   1260/420 - 540/420 = 1260 - 540/420 = 720/420
5. After reducing the fraction, the answer is 12/7
6. In mixed form: 15/7

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