Subtract 90/45 from 40/27
1st number: 1 13/27, 2nd number: 2 0/45
40/27 - 90/45 is -14/27.
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,
40/27 = 40 × 5/27 × 5 = 200/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
90/45 = 90 × 3/45 × 3 = 270/135 - Subtract the two like fractions:
200/135 - 270/135 = 200 - 270/135 = -70/135 - After reducing the fraction, the answer is -14/27
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