Add 21/18 and 7/3
1st number: 1 3/18, 2nd number: 2 1/3
21/18 + 7/3 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 3 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Likewise, for the 2nd fraction, since 3 × 6 = 18,
7/3 = 7 × 6/3 × 6 = 42/18 - Add the two like fractions:
21/18 + 42/18 = 21 + 42/18 = 63/18 - 63/18 simplified gives 7/2
- So, 21/18 + 7/3 = 7/2
In mixed form: 31/2
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