Subtract 18/9 from 54/72
1st number: 54/72, 2nd number: 2 0/9
54/72 - 18/9 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
54/72 = 54 × 1/72 × 1 = 54/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
18/9 = 18 × 8/9 × 8 = 144/72 - Subtract the two like fractions:
54/72 - 144/72 = 54 - 144/72 = -90/72 - After reducing the fraction, the answer is -5/4
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