Add 3/10 and 9/12
3/10 + 9/12 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
3/10 = 3 × 6/10 × 6 = 18/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Add the two like fractions:
18/60 + 45/60 = 18 + 45/60 = 63/60 - 63/60 simplified gives 21/20
- So, 3/10 + 9/12 = 21/20
In mixed form: 11/20
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