Add 21/3 and 18/36
1st number: 7 0/3, 2nd number: 18/36
21/3 + 18/36 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 3 × 12 = 36,
21/3 = 21 × 12/3 × 12 = 252/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
18/36 = 18 × 1/36 × 1 = 18/36 - Add the two like fractions:
252/36 + 18/36 = 252 + 18/36 = 270/36 - 270/36 simplified gives 15/2
- So, 21/3 + 18/36 = 15/2
In mixed form: 71/2
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