Add 15/20 and 20/30
15/20 + 20/30 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Add the two like fractions:
45/60 + 40/60 = 45 + 40/60 = 85/60 - 85/60 simplified gives 17/12
- So, 15/20 + 20/30 = 17/12
In mixed form: 15/12
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