Subtract 81/98 from 8/15
8/15 - 81/98 is -431/1470.
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,
8/15 = 8 × 98/15 × 98 = 784/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
81/98 = 81 × 15/98 × 15 = 1215/1470 - Subtract the two like fractions:
784/1470 - 1215/1470 = 784 - 1215/1470 = -431/1470
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