Add 90/9 and 21/16
1st number: 10 0/9, 2nd number: 1 5/16
90/9 + 21/16 is 181/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
90/9 = 90 × 16/9 × 16 = 1440/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Add the two like fractions:
1440/144 + 189/144 = 1440 + 189/144 = 1629/144 - 1629/144 simplified gives 181/16
- So, 90/9 + 21/16 = 181/16
In mixed form: 115/16
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