Subtract 45/54 from 90/40
1st number: 2 10/40, 2nd number: 45/54
90/40 - 45/54 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
90/40 = 90 × 27/40 × 27 = 2430/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
45/54 = 45 × 20/54 × 20 = 900/1080 - Subtract the two like fractions:
2430/1080 - 900/1080 = 2430 - 900/1080 = 1530/1080 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
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