Add 21/18 and 18/60
1st number: 1 3/18, 2nd number: 18/60
21/18 + 18/60 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
21/18 = 21 × 10/18 × 10 = 210/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Add the two like fractions:
210/180 + 54/180 = 210 + 54/180 = 264/180 - 264/180 simplified gives 22/15
- So, 21/18 + 18/60 = 22/15
In mixed form: 17/15
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