Answers

Subtract 64/4 from 4/21

1^st number: 4/21, 2^nd number: 16 0/4

4/21 - 64/4 is -332/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 4 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   4/21 = 4 × 4/21 × 4 = 16/84
3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
   64/4 = 64 × 21/4 × 21 = 1344/84
4. Subtract the two like fractions:
   16/84 - 1344/84 = 16 - 1344/84 = -1328/84
5. After reducing the fraction, the answer is -332/21

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