Add 21/30 and 28/10
1st number: 21/30, 2nd number: 2 8/10
21/30 + 28/10 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
28/10 = 28 × 3/10 × 3 = 84/30 - Add the two like fractions:
21/30 + 84/30 = 21 + 84/30 = 105/30 - 105/30 simplified gives 7/2
- So, 21/30 + 28/10 = 7/2
In mixed form: 31/2
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