Add 81/90 and 27/60
81/90 + 27/60 is 27/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
81/90 = 81 × 2/90 × 2 = 162/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
27/60 = 27 × 3/60 × 3 = 81/180 - Add the two like fractions:
162/180 + 81/180 = 162 + 81/180 = 243/180 - 243/180 simplified gives 27/20
- So, 81/90 + 27/60 = 27/20
In mixed form: 17/20
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