Subtract 21/81 from 25/24
1st number: 1 1/24, 2nd number: 21/81
25/24 - 21/81 is 169/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 24 × 27 = 648,
25/24 = 25 × 27/24 × 27 = 675/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
21/81 = 21 × 8/81 × 8 = 168/648 - Subtract the two like fractions:
675/648 - 168/648 = 675 - 168/648 = 507/648 - After reducing the fraction, the answer is 169/216
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