Add 81/90 and 7/18
81/90 + 7/18 is 58/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 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 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Add the two like fractions:
81/90 + 35/90 = 81 + 35/90 = 116/90 - 116/90 simplified gives 58/45
- So, 81/90 + 7/18 = 58/45
In mixed form: 113/45
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