Add 21/18 and 90/60
1st number: 1 3/18, 2nd number: 1 30/60
21/18 + 90/60 is 8/3.
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,
90/60 = 90 × 3/60 × 3 = 270/180 - Add the two like fractions:
210/180 + 270/180 = 210 + 270/180 = 480/180 - 480/180 simplified gives 8/3
- So, 21/18 + 90/60 = 8/3
In mixed form: 22/3
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