Add 12/3 and 21/18
1st number: 4 0/3, 2nd number: 1 3/18
12/3 + 21/18 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
12/3 = 12 × 6/3 × 6 = 72/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Add the two like fractions:
72/18 + 21/18 = 72 + 21/18 = 93/18 - 93/18 simplified gives 31/6
- So, 12/3 + 21/18 = 31/6
In mixed form: 51/6
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