Add 12/5 and 21/30
1st number: 2 2/5, 2nd number: 21/30
12/5 + 21/30 is 31/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
12/5 = 12 × 6/5 × 6 = 72/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Add the two like fractions:
72/30 + 21/30 = 72 + 21/30 = 93/30 - 93/30 simplified gives 31/10
- So, 12/5 + 21/30 = 31/10
In mixed form: 31/10
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