Add 21/10 and 28/3
1st number: 2 1/10, 2nd number: 9 1/3
21/10 + 28/3 is 343/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
28/3 = 28 × 10/3 × 10 = 280/30 - Add the two like fractions:
63/30 + 280/30 = 63 + 280/30 = 343/30 - So, 21/10 + 28/3 = 343/30
In mixed form: 1113/30
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