Subtract 80/81 from 42/24
1st number: 1 18/24, 2nd number: 80/81
42/24 - 80/81 is 247/324.
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,
42/24 = 42 × 27/24 × 27 = 1134/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
80/81 = 80 × 8/81 × 8 = 640/648 - Subtract the two like fractions:
1134/648 - 640/648 = 1134 - 640/648 = 494/648 - After reducing the fraction, the answer is 247/324
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