Add 21/6 and 42/27
1st number: 3 3/6, 2nd number: 1 15/27
21/6 + 42/27 is 91/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 6 × 9 = 54,
21/6 = 21 × 9/6 × 9 = 189/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Add the two like fractions:
189/54 + 84/54 = 189 + 84/54 = 273/54 - 273/54 simplified gives 91/18
- So, 21/6 + 42/27 = 91/18
In mixed form: 51/18
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