Subtract 90/45 from 18/27
1st number: 18/27, 2nd number: 2 0/45
18/27 - 90/45 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
90/45 = 90 × 3/45 × 3 = 270/135 - Subtract the two like fractions:
90/135 - 270/135 = 90 - 270/135 = -180/135 - After reducing the fraction, the answer is -4/3
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