Subtract 60/72 from 5/90
5/90 - 60/72 is -7/9.
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,
5/90 = 5 × 4/90 × 4 = 20/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Subtract the two like fractions:
20/360 - 300/360 = 20 - 300/360 = -280/360 - After reducing the fraction, the answer is -7/9
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