Answers

Subtract 27/14 from 72/20

1^st number: 3 12/20, 2^nd number: 1 13/14

72/20 - 27/14 is 117/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 14 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   72/20 = 72 × 7/20 × 7 = 504/140
3. Likewise, for the 2nd fraction, since 14 × 10 = 140,
   27/14 = 27 × 10/14 × 10 = 270/140
4. Subtract the two like fractions:
   504/140 - 270/140 = 504 - 270/140 = 234/140
5. After reducing the fraction, the answer is 117/70
6. In mixed form: 147/70

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