Add 72/14 and 32/18, Solve 5 2/14 + 1 14/18 as a fraction

Add 72/14 and 32/18

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

72/14 + 32/18 is 436/63.

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,
32/18 = 32 × 7/18 × 7 = 224/126
Add the two like fractions:
648/126 + 224/126 = 648 + 224/126 = 872/126
872/126 simplified gives 436/63
So, 72/14 + 32/18 = 436/63
In mixed form: 658/63

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad