Add 72/14 and 63/18, Solve 5 2/14 + 3 9/18 as a fraction

Add 72/14 and 63/18

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

72/14 + 63/18 is 121/14.

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,
72/14 = 72 × 9/14 × 9 = 648/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126
Add the two like fractions:
648/126 + 441/126 = 648 + 441/126 = 1089/126
1089/126 simplified gives 121/14
So, 72/14 + 63/18 = 121/14
In mixed form: 89/14

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