Add 18/20 and 15/30
18/20 + 15/30 is 7/5.
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,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
15/30 = 15 × 2/30 × 2 = 30/60 - Add the two like fractions:
54/60 + 30/60 = 54 + 30/60 = 84/60 - 84/60 simplified gives 7/5
- So, 18/20 + 15/30 = 7/5
In mixed form: 12/5
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