Add 18/8 and 8/63, Solve 2 2/8 + 8/63 as a fraction

Add 18/8 and 8/63

1^st number: 2 2/8, 2^nd number: 8/63

18/8 + 8/63 is 599/252.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
18/8 = 18 × 63/8 × 63 = 1134/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
8/63 = 8 × 8/63 × 8 = 64/504
Add the two like fractions:
1134/504 + 64/504 = 1134 + 64/504 = 1198/504
1198/504 simplified gives 599/252
So, 18/8 + 8/63 = 599/252
In mixed form: 295/252

MathStep (Works offline)

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