Subtract 20/36 from 18/30
18/30 - 20/36 is 2/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
18/30 = 18 × 6/30 × 6 = 108/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Subtract the two like fractions:
108/180 - 100/180 = 108 - 100/180 = 8/180 - After reducing the fraction, the answer is 2/45
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