Subtract 18/20 from 1/3
1/3 - 18/20 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
1/3 = 1 × 20/3 × 20 = 20/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Subtract the two like fractions:
20/60 - 54/60 = 20 - 54/60 = -34/60 - After reducing the fraction, the answer is -17/30
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