Add 20/12 and 90/54
1st number: 1 8/12, 2nd number: 1 36/54
20/12 + 90/54 is 10/3.
Steps for adding 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,
20/12 = 20 × 9/12 × 9 = 180/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
90/54 = 90 × 2/54 × 2 = 180/108 - Add the two like fractions:
180/108 + 180/108 = 180 + 180/108 = 360/108 - 360/108 simplified gives 10/3
- So, 20/12 + 90/54 = 10/3
In mixed form: 31/3
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