Add 12/7 and 15/18, Solve 1 5/7 + 15/18 as a fraction

Add 12/7 and 15/18

1^st number: 1 5/7, 2^nd number: 15/18

12/7 + 15/18 is 107/42.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
12/7 = 12 × 18/7 × 18 = 216/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126
Add the two like fractions:
216/126 + 105/126 = 216 + 105/126 = 321/126
321/126 simplified gives 107/42
So, 12/7 + 15/18 = 107/42
In mixed form: 223/42

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