Subtract 15/21 from 10/32
10/32 - 15/21 is -45/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
10/32 = 10 × 21/32 × 21 = 210/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
15/21 = 15 × 32/21 × 32 = 480/672 - Subtract the two like fractions:
210/672 - 480/672 = 210 - 480/672 = -270/672 - After reducing the fraction, the answer is -45/112
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