Add 90/27 and 81/12
1st number: 3 9/27, 2nd number: 6 9/12
90/27 + 81/12 is 121/12.
Steps for adding 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,
81/12 = 81 × 9/12 × 9 = 729/108 - Add the two like fractions:
360/108 + 729/108 = 360 + 729/108 = 1089/108 - 1089/108 simplified gives 121/12
- So, 90/27 + 81/12 = 121/12
In mixed form: 101/12
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