Add 27/6 and 28/63, Solve 4 3/6 + 28/63 as a fraction

Add 27/6 and 28/63

1^st number: 4 3/6, 2^nd number: 28/63

27/6 + 28/63 is 89/18.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 6 × 21 = 126,
27/6 = 27 × 21/6 × 21 = 567/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126
Add the two like fractions:
567/126 + 56/126 = 567 + 56/126 = 623/126
623/126 simplified gives 89/18
So, 27/6 + 28/63 = 89/18
In mixed form: 417/18

MathStep (Works offline)

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