Subtract 90/96 from 28/70
28/70 - 90/96 is -43/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 96 is 3360
Next, find the equivalent fraction of both fractional numbers with denominator 3360 - For the 1st fraction, since 70 × 48 = 3360,
28/70 = 28 × 48/70 × 48 = 1344/3360 - Likewise, for the 2nd fraction, since 96 × 35 = 3360,
90/96 = 90 × 35/96 × 35 = 3150/3360 - Subtract the two like fractions:
1344/3360 - 3150/3360 = 1344 - 3150/3360 = -1806/3360 - After reducing the fraction, the answer is -43/80
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