Add 21/9 and 18/90
1st number: 2 3/9, 2nd number: 18/90
21/9 + 18/90 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Add the two like fractions:
210/90 + 18/90 = 210 + 18/90 = 228/90 - 228/90 simplified gives 38/15
- So, 21/9 + 18/90 = 38/15
In mixed form: 28/15
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