Add 3/14 and 21/18, Solve 3/14 + 1 3/18 as a fraction

Add 3/14 and 21/18

1^st number: 3/14, 2^nd number: 1 3/18

3/14 + 21/18 is 29/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
3/14 = 3 × 9/14 × 9 = 27/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126
Add the two like fractions:
27/126 + 147/126 = 27 + 147/126 = 174/126
174/126 simplified gives 29/21
So, 3/14 + 21/18 = 29/21
In mixed form: 18/21

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