Add 14/21 and 42/20, Solve 14/21 + 2 2/20 as a fraction

Add 14/21 and 42/20

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

14/21 + 42/20 is 83/30.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 21 × 20 = 420,
14/21 = 14 × 20/21 × 20 = 280/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
42/20 = 42 × 21/20 × 21 = 882/420
Add the two like fractions:
280/420 + 882/420 = 280 + 882/420 = 1162/420
1162/420 simplified gives 83/30
So, 14/21 + 42/20 = 83/30
In mixed form: 223/30

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