Add 12/90 and 18/20
12/90 + 18/20 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Add the two like fractions:
24/180 + 162/180 = 24 + 162/180 = 186/180 - 186/180 simplified gives 31/30
- So, 12/90 + 18/20 = 31/30
In mixed form: 11/30
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