Answers

Subtract 70/21 from 84/4

1^st number: 21 0/4, 2^nd number: 3 7/21

84/4 - 70/21 is 53/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   84/4 = 84 × 21/4 × 21 = 1764/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   70/21 = 70 × 4/21 × 4 = 280/84
4. Subtract the two like fractions:
   1764/84 - 280/84 = 1764 - 280/84 = 1484/84
5. After reducing the fraction, the answer is 53/3
6. In mixed form: 172/3

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