Add 20/30 and 9/12
20/30 + 9/12 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Add the two like fractions:
40/60 + 45/60 = 40 + 45/60 = 85/60 - 85/60 simplified gives 17/12
- So, 20/30 + 9/12 = 17/12
In mixed form: 15/12
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