Add 35/21 and 20/54, Solve 1 14/21 + 20/54 as a fraction

Add 35/21 and 20/54

1^st number: 1 14/21, 2^nd number: 20/54

35/21 + 20/54 is 55/27.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 21 × 18 = 378,
35/21 = 35 × 18/21 × 18 = 630/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378
Add the two like fractions:
630/378 + 140/378 = 630 + 140/378 = 770/378
770/378 simplified gives 55/27
So, 35/21 + 20/54 = 55/27
In mixed form: 21/27

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