Add 15/21 and 75/42, Solve 15/21 + 1 33/42 as a fraction

Add 15/21 and 75/42

1^st number: 15/21, 2^nd number: 1 33/42

15/21 + 75/42 is 5/2.

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

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
75/42 = 75 × 1/42 × 1 = 75/42
Add the two like fractions:
30/42 + 75/42 = 30 + 75/42 = 105/42
105/42 simplified gives 5/2
So, 15/21 + 75/42 = 5/2
In mixed form: 21/2

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