Add 12/30 and 21/15
1st number: 12/30, 2nd number: 1 6/15
12/30 + 21/15 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Add the two like fractions:
12/30 + 42/30 = 12 + 42/30 = 54/30 - 54/30 simplified gives 9/5
- So, 12/30 + 21/15 = 9/5
In mixed form: 14/5
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