Add 72/14 and 30/21, Solve 5 2/14 + 1 9/21 as a fraction

Add 72/14 and 30/21

1^st number: 5 2/14, 2^nd number: 1 9/21

72/14 + 30/21 is 46/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
72/14 = 72 × 3/14 × 3 = 216/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
30/21 = 30 × 2/21 × 2 = 60/42
Add the two like fractions:
216/42 + 60/42 = 216 + 60/42 = 276/42
276/42 simplified gives 46/7
So, 72/14 + 30/21 = 46/7
In mixed form: 64/7

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