Add 45/14 and 45/21, Solve 3 3/14 + 2 3/21 as a fraction

Add 45/14 and 45/21

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

45/14 + 45/21 is 75/14.

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,
45/21 = 45 × 2/21 × 2 = 90/42
Add the two like fractions:
135/42 + 90/42 = 135 + 90/42 = 225/42
225/42 simplified gives 75/14
So, 45/14 + 45/21 = 75/14
In mixed form: 55/14

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