Add 21/14 and 20/27, Solve 1 7/14 + 20/27 as a fraction

Add 21/14 and 20/27

1^st number: 1 7/14, 2^nd number: 20/27

21/14 + 20/27 is 121/54.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 27 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 14 × 27 = 378,
21/14 = 21 × 27/14 × 27 = 567/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
20/27 = 20 × 14/27 × 14 = 280/378
Add the two like fractions:
567/378 + 280/378 = 567 + 280/378 = 847/378
847/378 simplified gives 121/54
So, 21/14 + 20/27 = 121/54
In mixed form: 213/54

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