Add 20/90 and 21/10
1st number: 20/90, 2nd number: 2 1/10
20/90 + 21/10 is 209/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Add the two like fractions:
20/90 + 189/90 = 20 + 189/90 = 209/90 - So, 20/90 + 21/10 = 209/90
In mixed form: 229/90
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