Subtract 90/54 from 28/30
1st number: 28/30, 2nd number: 1 36/54
28/30 - 90/54 is -11/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
28/30 = 28 × 9/30 × 9 = 252/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Subtract the two like fractions:
252/270 - 450/270 = 252 - 450/270 = -198/270 - After reducing the fraction, the answer is -11/15
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