Subtract 70/21 from 20/96
1st number: 20/96, 2nd number: 3 7/21
20/96 - 70/21 is -25/8.
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,
20/96 = 20 × 7/96 × 7 = 140/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
70/21 = 70 × 32/21 × 32 = 2240/672 - Subtract the two like fractions:
140/672 - 2240/672 = 140 - 2240/672 = -2100/672 - After reducing the fraction, the answer is -25/8
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