Add 80/60 and 21/18
1st number: 1 20/60, 2nd number: 1 3/18
80/60 + 21/18 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
80/60 = 80 × 3/60 × 3 = 240/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
21/18 = 21 × 10/18 × 10 = 210/180 - Add the two like fractions:
240/180 + 210/180 = 240 + 210/180 = 450/180 - 450/180 simplified gives 5/2
- So, 80/60 + 21/18 = 5/2
In mixed form: 21/2
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