Subtract 70/72 from 90/96
90/96 - 70/72 is -5/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 72 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 96 × 3 = 288,
90/96 = 90 × 3/96 × 3 = 270/288 - Likewise, for the 2nd fraction, since 72 × 4 = 288,
70/72 = 70 × 4/72 × 4 = 280/288 - Subtract the two like fractions:
270/288 - 280/288 = 270 - 280/288 = -10/288 - After reducing the fraction, the answer is -5/144
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