Subtract 20/54 from 90/12
1st number: 7 6/12, 2nd number: 20/54
90/12 - 20/54 is 385/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 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 54 × 2 = 108,
20/54 = 20 × 2/54 × 2 = 40/108 - Subtract the two like fractions:
810/108 - 40/108 = 810 - 40/108 = 770/108 - After reducing the fraction, the answer is 385/54
- In mixed form: 77/54
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