Add 21/6 and 15/18
1st number: 3 3/6, 2nd number: 15/18
21/6 + 15/18 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
15/18 = 15 × 1/18 × 1 = 15/18 - Add the two like fractions:
63/18 + 15/18 = 63 + 15/18 = 78/18 - 78/18 simplified gives 13/3
- So, 21/6 + 15/18 = 13/3
In mixed form: 41/3
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