Add 21/49 and 84/63, Solve 21/49 + 1 21/63 as a fraction

Add 21/49 and 84/63

1^st number: 21/49, 2^nd number: 1 21/63

21/49 + 84/63 is 37/21.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441
Likewise, for the 2nd fraction, since 63 × 7 = 441,
84/63 = 84 × 7/63 × 7 = 588/441
Add the two like fractions:
189/441 + 588/441 = 189 + 588/441 = 777/441
777/441 simplified gives 37/21
So, 21/49 + 84/63 = 37/21
In mixed form: 116/21

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