Subtract 15/54 from 90/45
1st number: 2 0/45, 2nd number: 15/54
90/45 - 15/54 is 31/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
90/45 = 90 × 6/45 × 6 = 540/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Subtract the two like fractions:
540/270 - 75/270 = 540 - 75/270 = 465/270 - After reducing the fraction, the answer is 31/18
- In mixed form: 113/18
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