Add 45/14 and 15/21, Solve 3 3/14 + 15/21 as a fraction

Add 45/14 and 15/21

1^st number: 3 3/14, 2^nd number: 15/21

45/14 + 15/21 is 55/14.

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,
45/14 = 45 × 3/14 × 3 = 135/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42
Add the two like fractions:
135/42 + 30/42 = 135 + 30/42 = 165/42
165/42 simplified gives 55/14
So, 45/14 + 15/21 = 55/14
In mixed form: 313/14

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