Add 1/21 and 27/18, Solve 1/21 + 1 9/18 as a fraction

Add 1/21 and 27/18

1^st number: 1/21, 2^nd number: 1 9/18

1/21 + 27/18 is 65/42.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
1/21 = 1 × 6/21 × 6 = 6/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
27/18 = 27 × 7/18 × 7 = 189/126
Add the two like fractions:
6/126 + 189/126 = 6 + 189/126 = 195/126
195/126 simplified gives 65/42
So, 1/21 + 27/18 = 65/42
In mixed form: 123/42

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