Subtract 70/90 from 3/8
3/8 - 70/90 is -29/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
3/8 = 3 × 45/8 × 45 = 135/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
70/90 = 70 × 4/90 × 4 = 280/360 - Subtract the two like fractions:
135/360 - 280/360 = 135 - 280/360 = -145/360 - After reducing the fraction, the answer is -29/72
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