Answers

Subtract 56/40 from 28/64

1^st number: 28/64, 2^nd number: 1 16/40

28/64 - 56/40 is -77/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 40 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   28/64 = 28 × 5/64 × 5 = 140/320
3. Likewise, for the 2nd fraction, since 40 × 8 = 320,
   56/40 = 56 × 8/40 × 8 = 448/320
4. Subtract the two like fractions:
   140/320 - 448/320 = 140 - 448/320 = -308/320
5. After reducing the fraction, the answer is -77/80

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