Answers

Subtract 21/64 from 63/20

1^st number: 3 3/20, 2^nd number: 21/64

63/20 - 21/64 is 903/320.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 20 × 16 = 320,
   63/20 = 63 × 16/20 × 16 = 1008/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   21/64 = 21 × 5/64 × 5 = 105/320
4. Subtract the two like fractions:
   1008/320 - 105/320 = 1008 - 105/320 = 903/320
5. In mixed form: 2263/320

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