Subtract 45/54 from 7/9
7/9 - 45/54 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 9 × 6 = 54,
7/9 = 7 × 6/9 × 6 = 42/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
45/54 = 45 × 1/54 × 1 = 45/54 - Subtract the two like fractions:
42/54 - 45/54 = 42 - 45/54 = -3/54 - After reducing the fraction, the answer is -1/18
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