Add 21/9 and 20/14, Solve 2 3/9 + 1 6/14 as a fraction

Add 21/9 and 20/14

1^st number: 2 3/9, 2^nd number: 1 6/14

21/9 + 20/14 is 79/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 9 × 14 = 126,
21/9 = 21 × 14/9 × 14 = 294/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126
Add the two like fractions:
294/126 + 180/126 = 294 + 180/126 = 474/126
474/126 simplified gives 79/21
So, 21/9 + 20/14 = 79/21
In mixed form: 316/21

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