Add 27/7 and 45/18, Solve 3 6/7 + 2 9/18 as a fraction

Add 27/7 and 45/18

1^st number: 3 6/7, 2^nd number: 2 9/18

27/7 + 45/18 is 89/14.

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,
27/7 = 27 × 18/7 × 18 = 486/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126
Add the two like fractions:
486/126 + 315/126 = 486 + 315/126 = 801/126
801/126 simplified gives 89/14
So, 27/7 + 45/18 = 89/14
In mixed form: 65/14

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