Subtract 8/9 from 7/18
7/18 - 8/9 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
7/18 = 7 × 1/18 × 1 = 7/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
8/9 = 8 × 2/9 × 2 = 16/18 - Subtract the two like fractions:
7/18 - 16/18 = 7 - 16/18 = -9/18 - After reducing the fraction, the answer is -1/2
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