Add 81/45 and 90/27
1st number: 1 36/45, 2nd number: 3 9/27
81/45 + 90/27 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
81/45 = 81 × 3/45 × 3 = 243/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
90/27 = 90 × 5/27 × 5 = 450/135 - Add the two like fractions:
243/135 + 450/135 = 243 + 450/135 = 693/135 - 693/135 simplified gives 77/15
- So, 81/45 + 90/27 = 77/15
In mixed form: 52/15
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