Subtract 90/54 from 48/45
1st number: 1 3/45, 2nd number: 1 36/54
48/45 - 90/54 is -3/5.
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,
48/45 = 48 × 6/45 × 6 = 288/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Subtract the two like fractions:
288/270 - 450/270 = 288 - 450/270 = -162/270 - After reducing the fraction, the answer is -3/5
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