Add 80/63 and 45/84, Solve 1 17/63 + 45/84 as a fraction

Add 80/63 and 45/84

1^st number: 1 17/63, 2^nd number: 45/84

80/63 + 45/84 is 65/36.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 63 × 4 = 252,
80/63 = 80 × 4/63 × 4 = 320/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
45/84 = 45 × 3/84 × 3 = 135/252
Add the two like fractions:
320/252 + 135/252 = 320 + 135/252 = 455/252
455/252 simplified gives 65/36
So, 80/63 + 45/84 = 65/36
In mixed form: 129/36

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