Answers

Subtract 28/20 from 1/64

1^st number: 1/64, 2^nd number: 1 8/20

1/64 - 28/20 is -443/320.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 20 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   1/64 = 1 × 5/64 × 5 = 5/320
3. Likewise, for the 2nd fraction, since 20 × 16 = 320,
   28/20 = 28 × 16/20 × 16 = 448/320
4. Subtract the two like fractions:
   5/320 - 448/320 = 5 - 448/320 = -443/320

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