Subtract 63/64 from 10/20
10/20 - 63/64 is -31/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 20 × 16 = 320,
10/20 = 10 × 16/20 × 16 = 160/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
63/64 = 63 × 5/64 × 5 = 315/320 - Subtract the two like fractions:
160/320 - 315/320 = 160 - 315/320 = -155/320 - After reducing the fraction, the answer is -31/64
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