Add 6/28 and 12/63, Solve 6/28 + 12/63 as a fraction

Add 6/28 and 12/63

6/28 + 12/63 is 17/42.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 28 × 9 = 252,
6/28 = 6 × 9/28 × 9 = 54/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
12/63 = 12 × 4/63 × 4 = 48/252
Add the two like fractions:
54/252 + 48/252 = 54 + 48/252 = 102/252
102/252 simplified gives 17/42
So, 6/28 + 12/63 = 17/42

MathStep (Works offline)

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