Subtract 18/12 from 90/27
1st number: 3 9/27, 2nd number: 1 6/12
90/27 - 18/12 is 11/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
90/27 = 90 × 4/27 × 4 = 360/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
18/12 = 18 × 9/12 × 9 = 162/108 - Subtract the two like fractions:
360/108 - 162/108 = 360 - 162/108 = 198/108 - After reducing the fraction, the answer is 11/6
- In mixed form: 15/6
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