Subtract 21/30 from 14/64
14/64 - 21/30 is -77/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 30 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 64 × 15 = 960,
14/64 = 14 × 15/64 × 15 = 210/960 - Likewise, for the 2nd fraction, since 30 × 32 = 960,
21/30 = 21 × 32/30 × 32 = 672/960 - Subtract the two like fractions:
210/960 - 672/960 = 210 - 672/960 = -462/960 - After reducing the fraction, the answer is -77/160
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