Answers

Subtract 14/7 from 12/20

1^st number: 12/20, 2^nd number: 2 0/7

12/20 - 14/7 is -7/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 7 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   12/20 = 12 × 7/20 × 7 = 84/140
3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
   14/7 = 14 × 20/7 × 20 = 280/140
4. Subtract the two like fractions:
   84/140 - 280/140 = 84 - 280/140 = -196/140
5. After reducing the fraction, the answer is -7/5

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