Subtract 21/96 from 28/21
1st number: 1 7/21, 2nd number: 21/96
28/21 - 21/96 is 107/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 96 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
28/21 = 28 × 32/21 × 32 = 896/672 - Likewise, for the 2nd fraction, since 96 × 7 = 672,
21/96 = 21 × 7/96 × 7 = 147/672 - Subtract the two like fractions:
896/672 - 147/672 = 896 - 147/672 = 749/672 - After reducing the fraction, the answer is 107/96
- In mixed form: 111/96
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