Subtract 98/70 from 4/81
1st number: 4/81, 2nd number: 1 28/70
4/81 - 98/70 is -547/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
4/81 = 4 × 70/81 × 70 = 280/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
98/70 = 98 × 81/70 × 81 = 7938/5670 - Subtract the two like fractions:
280/5670 - 7938/5670 = 280 - 7938/5670 = -7658/5670 - After reducing the fraction, the answer is -547/405
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