Subtract 9/98 from 21/27
21/27 - 9/98 is 605/882.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 98 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 27 × 98 = 2646,
21/27 = 21 × 98/27 × 98 = 2058/2646 - Likewise, for the 2nd fraction, since 98 × 27 = 2646,
9/98 = 9 × 27/98 × 27 = 243/2646 - Subtract the two like fractions:
2058/2646 - 243/2646 = 2058 - 243/2646 = 1815/2646 - After reducing the fraction, the answer is 605/882
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