Subtract 28/36 from 6/20
6/20 - 28/36 is -43/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Subtract the two like fractions:
54/180 - 140/180 = 54 - 140/180 = -86/180 - After reducing the fraction, the answer is -43/90
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