Add 63/12 and 27/16, Solve 5 3/12 + 1 11/16 as a fraction

Add 63/12 and 27/16

1^st number: 5 3/12, 2^nd number: 1 11/16

63/12 + 27/16 is 111/16.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48

Next, find the equivalent fraction of both fractional numbers with denominator 48
For the 1st fraction, since 12 × 4 = 48,
63/12 = 63 × 4/12 × 4 = 252/48
Likewise, for the 2nd fraction, since 16 × 3 = 48,
27/16 = 27 × 3/16 × 3 = 81/48
Add the two like fractions:
252/48 + 81/48 = 252 + 81/48 = 333/48
333/48 simplified gives 111/16
So, 63/12 + 27/16 = 111/16
In mixed form: 615/16

MathStep (Works offline)

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