Add 80/14 and 63/18, Solve 5 10/14 + 3 9/18 as a fraction

Add 80/14 and 63/18

1^st number: 5 10/14, 2^nd number: 3 9/18

80/14 + 63/18 is 129/14.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
80/14 = 80 × 9/14 × 9 = 720/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126
Add the two like fractions:
720/126 + 441/126 = 720 + 441/126 = 1161/126
1161/126 simplified gives 129/14
So, 80/14 + 63/18 = 129/14
In mixed form: 93/14

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