Subtract 20/36 from 75/90
75/90 - 20/36 is 5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
75/90 = 75 × 2/90 × 2 = 150/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Subtract the two like fractions:
150/180 - 100/180 = 150 - 100/180 = 50/180 - After reducing the fraction, the answer is 5/18
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