Subtract 90/81 from 28/24
1st number: 1 4/24, 2nd number: 1 9/81
28/24 - 90/81 is 1/18.
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,
28/24 = 28 × 27/24 × 27 = 756/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
90/81 = 90 × 8/81 × 8 = 720/648 - Subtract the two like fractions:
756/648 - 720/648 = 756 - 720/648 = 36/648 - After reducing the fraction, the answer is 1/18
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