Subtract 80/98 from 90/81
1st number: 1 9/81, 2nd number: 80/98
90/81 - 80/98 is 130/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 98 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 81 × 98 = 7938,
90/81 = 90 × 98/81 × 98 = 8820/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
80/98 = 80 × 81/98 × 81 = 6480/7938 - Subtract the two like fractions:
8820/7938 - 6480/7938 = 8820 - 6480/7938 = 2340/7938 - After reducing the fraction, the answer is 130/441
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