Add 16/15 and 21/90
1st number: 1 1/15, 2nd number: 21/90
16/15 + 21/90 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
16/15 = 16 × 6/15 × 6 = 96/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
96/90 + 21/90 = 96 + 21/90 = 117/90 - 117/90 simplified gives 13/10
- So, 16/15 + 21/90 = 13/10
In mixed form: 13/10
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