Subtract 30/81 from 98/72
1st number: 1 26/72, 2nd number: 30/81
98/72 - 30/81 is 107/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 72 × 9 = 648,
98/72 = 98 × 9/72 × 9 = 882/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
30/81 = 30 × 8/81 × 8 = 240/648 - Subtract the two like fractions:
882/648 - 240/648 = 882 - 240/648 = 642/648 - After reducing the fraction, the answer is 107/108
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