Subtract 20/72 from 24/36
24/36 - 20/72 is 7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
24/36 = 24 × 2/36 × 2 = 48/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Subtract the two like fractions:
48/72 - 20/72 = 48 - 20/72 = 28/72 - After reducing the fraction, the answer is 7/18
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