Subtract 9/15 from 28/54
28/54 - 9/15 is -11/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
28/54 = 28 × 5/54 × 5 = 140/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
9/15 = 9 × 18/15 × 18 = 162/270 - Subtract the two like fractions:
140/270 - 162/270 = 140 - 162/270 = -22/270 - After reducing the fraction, the answer is -11/135
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