Answers

Subtract 21/64 from 28/18

1^st number: 1 10/18, 2^nd number: 21/64

28/18 - 21/64 is 707/576.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 64 is 576
   
   Next, find the equivalent fraction of both fractional numbers with denominator 576
2. For the 1st fraction, since 18 × 32 = 576,
   28/18 = 28 × 32/18 × 32 = 896/576
3. Likewise, for the 2nd fraction, since 64 × 9 = 576,
   21/64 = 21 × 9/64 × 9 = 189/576
4. Subtract the two like fractions:
   896/576 - 189/576 = 896 - 189/576 = 707/576
5. In mixed form: 1131/576

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