Subtract 7/9 from 20/27
20/27 - 7/9 is -1/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
20/27 = 20 × 1/27 × 1 = 20/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
7/9 = 7 × 3/9 × 3 = 21/27 - Subtract the two like fractions:
20/27 - 21/27 = 20 - 21/27 = -1/27
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