Add 18/20 and 81/30
1st number: 18/20, 2nd number: 2 21/30
18/20 + 81/30 is 18/5.
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,
81/30 = 81 × 2/30 × 2 = 162/60 - Add the two like fractions:
54/60 + 162/60 = 54 + 162/60 = 216/60 - 216/60 simplified gives 18/5
- So, 18/20 + 81/30 = 18/5
In mixed form: 33/5
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