Subtract 20/18 from 1/3
1st number: 1/3, 2nd number: 1 2/18
1/3 - 20/18 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
1/3 = 1 × 6/3 × 6 = 6/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Subtract the two like fractions:
6/18 - 20/18 = 6 - 20/18 = -14/18 - After reducing the fraction, the answer is -7/9
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