Subtract 45/54 from 10/30
10/30 - 45/54 is -1/2.
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,
10/30 = 10 × 9/30 × 9 = 90/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Subtract the two like fractions:
90/270 - 225/270 = 90 - 225/270 = -135/270 - After reducing the fraction, the answer is -1/2
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