Answers

Subtract 20/28 from 35/64

35/64 - 20/28 is -75/448.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 28 is 448
   
   Next, find the equivalent fraction of both fractional numbers with denominator 448
2. For the 1st fraction, since 64 × 7 = 448,
   35/64 = 35 × 7/64 × 7 = 245/448
3. Likewise, for the 2nd fraction, since 28 × 16 = 448,
   20/28 = 20 × 16/28 × 16 = 320/448
4. Subtract the two like fractions:
   245/448 - 320/448 = 245 - 320/448 = -75/448

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