Add 81/90 and 5/15
81/90 + 5/15 is 37/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 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 15 × 6 = 90,
5/15 = 5 × 6/15 × 6 = 30/90 - Add the two like fractions:
81/90 + 30/90 = 81 + 30/90 = 111/90 - 111/90 simplified gives 37/30
- So, 81/90 + 5/15 = 37/30
In mixed form: 17/30
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