Subtract 21/98 from 10/15
10/15 - 21/98 is 19/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 15 × 98 = 1470,
10/15 = 10 × 98/15 × 98 = 980/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
21/98 = 21 × 15/98 × 15 = 315/1470 - Subtract the two like fractions:
980/1470 - 315/1470 = 980 - 315/1470 = 665/1470 - After reducing the fraction, the answer is 19/42
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