Subtract 70/64 from 28/42
1st number: 28/42, 2nd number: 1 6/64
28/42 - 70/64 is -41/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
28/42 = 28 × 32/42 × 32 = 896/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
70/64 = 70 × 21/64 × 21 = 1470/1344 - Subtract the two like fractions:
896/1344 - 1470/1344 = 896 - 1470/1344 = -574/1344 - After reducing the fraction, the answer is -41/96
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