Subtract 28/27 from 90/12
1st number: 7 6/12, 2nd number: 1 1/27
90/12 - 28/27 is 349/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
90/12 = 90 × 9/12 × 9 = 810/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
28/27 = 28 × 4/27 × 4 = 112/108 - Subtract the two like fractions:
810/108 - 112/108 = 810 - 112/108 = 698/108 - After reducing the fraction, the answer is 349/54
- In mixed form: 625/54
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