Add 18/20 and 20/18
1st number: 18/20, 2nd number: 1 2/18
18/20 + 20/18 is 181/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
20/18 = 20 × 10/18 × 10 = 200/180 - Add the two like fractions:
162/180 + 200/180 = 162 + 200/180 = 362/180 - 362/180 simplified gives 181/90
- So, 18/20 + 20/18 = 181/90
In mixed form: 21/90
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