Add 81/90 and 27/30
81/90 + 27/30 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
81/90 = 81 × 1/90 × 1 = 81/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
27/30 = 27 × 3/30 × 3 = 81/90 - Add the two like fractions:
81/90 + 81/90 = 81 + 81/90 = 162/90 - 162/90 simplified gives 9/5
- So, 81/90 + 27/30 = 9/5
In mixed form: 14/5
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