Add 18/12 and 9/7
1st number: 1 6/12, 2nd number: 1 2/7
18/12 + 9/7 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
9/7 = 9 × 12/7 × 12 = 108/84 - Add the two like fractions:
126/84 + 108/84 = 126 + 108/84 = 234/84 - 234/84 simplified gives 39/14
- So, 18/12 + 9/7 = 39/14
In mixed form: 211/14
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