Answers

Subtract 4/20 from 21/5

1^st number: 4 1/5, 2^nd number: 4/20

21/5 - 4/20 is 4/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 20 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 5 × 4 = 20,
   21/5 = 21 × 4/5 × 4 = 84/20
3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
   4/20 = 4 × 1/20 × 1 = 4/20
4. Subtract the two like fractions:
   84/20 - 4/20 = 84 - 4/20 = 80/20
5. After reducing the fraction, the answer is 4/1

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