Add 28/9 and 21/18
1st number: 3 1/9, 2nd number: 1 3/18
28/9 + 21/18 is 77/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
28/9 = 28 × 2/9 × 2 = 56/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Add the two like fractions:
56/18 + 21/18 = 56 + 21/18 = 77/18 - So, 28/9 + 21/18 = 77/18
In mixed form: 45/18
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