Subtract 40/45 from 7/9
7/9 - 40/45 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
7/9 = 7 × 5/9 × 5 = 35/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
40/45 = 40 × 1/45 × 1 = 40/45 - Subtract the two like fractions:
35/45 - 40/45 = 35 - 40/45 = -5/45 - After reducing the fraction, the answer is -1/9
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