Add 72/42 and 14/21, Solve 1 30/42 + 14/21 as a fraction

Add 72/42 and 14/21

1^st number: 1 30/42, 2^nd number: 14/21

72/42 + 14/21 is 50/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
72/42 = 72 × 1/42 × 1 = 72/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
14/21 = 14 × 2/21 × 2 = 28/42
Add the two like fractions:
72/42 + 28/42 = 72 + 28/42 = 100/42
100/42 simplified gives 50/21
So, 72/42 + 14/21 = 50/21
In mixed form: 28/21

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