Subtract 21/96 from 1/7
1/7 - 21/96 is -17/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 96 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 7 × 96 = 672,
1/7 = 1 × 96/7 × 96 = 96/672 - Likewise, for the 2nd fraction, since 96 × 7 = 672,
21/96 = 21 × 7/96 × 7 = 147/672 - Subtract the two like fractions:
96/672 - 147/672 = 96 - 147/672 = -51/672 - After reducing the fraction, the answer is -17/224
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