Subtract 40/60 from 20/72
20/72 - 40/60 is -7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
40/60 = 40 × 6/60 × 6 = 240/360 - Subtract the two like fractions:
100/360 - 240/360 = 100 - 240/360 = -140/360 - After reducing the fraction, the answer is -7/18
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