Add 81/90 and 27/12
1st number: 81/90, 2nd number: 2 3/12
81/90 + 27/12 is 63/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 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 12 × 15 = 180,
27/12 = 27 × 15/12 × 15 = 405/180 - Add the two like fractions:
162/180 + 405/180 = 162 + 405/180 = 567/180 - 567/180 simplified gives 63/20
- So, 81/90 + 27/12 = 63/20
In mixed form: 33/20
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