Subtract 4/64 from 8/20
8/20 - 4/64 is 27/80.
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,
8/20 = 8 × 16/20 × 16 = 128/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
4/64 = 4 × 5/64 × 5 = 20/320 - Subtract the two like fractions:
128/320 - 20/320 = 128 - 20/320 = 108/320 - After reducing the fraction, the answer is 27/80
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