Subtract 1/5 from 1/18
1/18 - 1/5 is -13/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
1/5 = 1 × 18/5 × 18 = 18/90 - Subtract the two like fractions:
5/90 - 18/90 = 5 - 18/90 = -13/90
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