Subtract 18/21 from 63/96
63/96 - 18/21 is -45/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 96 × 7 = 672,
63/96 = 63 × 7/96 × 7 = 441/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
18/21 = 18 × 32/21 × 32 = 576/672 - Subtract the two like fractions:
441/672 - 576/672 = 441 - 576/672 = -135/672 - After reducing the fraction, the answer is -45/224
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