Subtract 90/81 from 45/8
1st number: 5 5/8, 2nd number: 1 9/81
45/8 - 90/81 is 325/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
45/8 = 45 × 81/8 × 81 = 3645/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
90/81 = 90 × 8/81 × 8 = 720/648 - Subtract the two like fractions:
3645/648 - 720/648 = 3645 - 720/648 = 2925/648 - After reducing the fraction, the answer is 325/72
- In mixed form: 437/72
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