Subtract 50/72 from 40/90
40/90 - 50/72 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
40/90 = 40 × 4/90 × 4 = 160/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
50/72 = 50 × 5/72 × 5 = 250/360 - Subtract the two like fractions:
160/360 - 250/360 = 160 - 250/360 = -90/360 - After reducing the fraction, the answer is -1/4
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