Add 30/27 and 21/12
1st number: 1 3/27, 2nd number: 1 9/12
30/27 + 21/12 is 103/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
30/27 = 30 × 4/27 × 4 = 120/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
21/12 = 21 × 9/12 × 9 = 189/108 - Add the two like fractions:
120/108 + 189/108 = 120 + 189/108 = 309/108 - 309/108 simplified gives 103/36
- So, 30/27 + 21/12 = 103/36
In mixed form: 231/36
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