Answers

Subtract 7/5 from 7/20

1^st number: 7/20, 2^nd number: 1 2/5

7/20 - 7/5 is -21/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 5 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   7/20 = 7 × 1/20 × 1 = 7/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   7/5 = 7 × 4/5 × 4 = 28/20
4. Subtract the two like fractions:
   7/20 - 28/20 = 7 - 28/20 = -21/20

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