Answers

Subtract 42/64 from 21/8

1^st number: 2 5/8, 2^nd number: 42/64

21/8 - 42/64 is 63/32.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 64 is 64
   
   Next, find the equivalent fraction of both fractional numbers with denominator 64
2. For the 1st fraction, since 8 × 8 = 64,
   21/8 = 21 × 8/8 × 8 = 168/64
3. Likewise, for the 2nd fraction, since 64 × 1 = 64,
   42/64 = 42 × 1/64 × 1 = 42/64
4. Subtract the two like fractions:
   168/64 - 42/64 = 168 - 42/64 = 126/64
5. After reducing the fraction, the answer is 63/32
6. In mixed form: 131/32

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