Add 21/30 and 12/10
1st number: 21/30, 2nd number: 1 2/10
21/30 + 12/10 is 19/10.
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,
12/10 = 12 × 3/10 × 3 = 36/30 - Add the two like fractions:
21/30 + 36/30 = 21 + 36/30 = 57/30 - 57/30 simplified gives 19/10
- So, 21/30 + 12/10 = 19/10
In mixed form: 19/10
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