Add 21/18 and 7/14, Solve 1 3/18 + 7/14 as a fraction

Add 21/18 and 7/14

1^st number: 1 3/18, 2^nd number: 7/14

21/18 + 7/14 is 5/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
7/14 = 7 × 9/14 × 9 = 63/126
Add the two like fractions:
147/126 + 63/126 = 147 + 63/126 = 210/126
210/126 simplified gives 5/3
So, 21/18 + 7/14 = 5/3
In mixed form: 12/3

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