Subtract 40/64 from 7/15
7/15 - 40/64 is -19/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 15 × 64 = 960,
7/15 = 7 × 64/15 × 64 = 448/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
40/64 = 40 × 15/64 × 15 = 600/960 - Subtract the two like fractions:
448/960 - 600/960 = 448 - 600/960 = -152/960 - After reducing the fraction, the answer is -19/120
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