Add 5/6 and 21/90
5/6 + 21/90 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
5/6 = 5 × 15/6 × 15 = 75/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
75/90 + 21/90 = 75 + 21/90 = 96/90 - 96/90 simplified gives 16/15
- So, 5/6 + 21/90 = 16/15
In mixed form: 11/15
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