Subtract 81/10 from 98/15
1st number: 6 8/15, 2nd number: 8 1/10
98/15 - 81/10 is -47/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
98/15 = 98 × 2/15 × 2 = 196/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
81/10 = 81 × 3/10 × 3 = 243/30 - Subtract the two like fractions:
196/30 - 243/30 = 196 - 243/30 = -47/30
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