Subtract 21/49 from 7/9
7/9 - 21/49 is 22/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
7/9 = 7 × 49/9 × 49 = 343/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441 - Subtract the two like fractions:
343/441 - 189/441 = 343 - 189/441 = 154/441 - After reducing the fraction, the answer is 22/63
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