Answers

Subtract 20/21 from 70/64

1^st number: 1 6/64, 2^nd number: 20/21

70/64 - 20/21 is 95/672.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 21 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 64 × 21 = 1344,
   70/64 = 70 × 21/64 × 21 = 1470/1344
3. Likewise, for the 2nd fraction, since 21 × 64 = 1344,
   20/21 = 20 × 64/21 × 64 = 1280/1344
4. Subtract the two like fractions:
   1470/1344 - 1280/1344 = 1470 - 1280/1344 = 190/1344
5. After reducing the fraction, the answer is 95/672

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