Subtract 7/10 from 20/64
20/64 - 7/10 is -31/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 10 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
20/64 = 20 × 5/64 × 5 = 100/320 - Likewise, for the 2nd fraction, since 10 × 32 = 320,
7/10 = 7 × 32/10 × 32 = 224/320 - Subtract the two like fractions:
100/320 - 224/320 = 100 - 224/320 = -124/320 - After reducing the fraction, the answer is -31/80
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