Add 21/10 and 28/30
1st number: 2 1/10, 2nd number: 28/30
21/10 + 28/30 is 91/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 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 30 × 1 = 30,
28/30 = 28 × 1/30 × 1 = 28/30 - Add the two like fractions:
63/30 + 28/30 = 63 + 28/30 = 91/30 - So, 21/10 + 28/30 = 91/30
In mixed form: 31/30
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