Add 7/18 and 63/35, Solve 7/18 + 1 28/35 as a fraction

Add 7/18 and 63/35

1^st number: 7/18, 2^nd number: 1 28/35

7/18 + 63/35 is 197/90.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
7/18 = 7 × 35/18 × 35 = 245/630
Likewise, for the 2nd fraction, since 35 × 18 = 630,
63/35 = 63 × 18/35 × 18 = 1134/630
Add the two like fractions:
245/630 + 1134/630 = 245 + 1134/630 = 1379/630
1379/630 simplified gives 197/90
So, 7/18 + 63/35 = 197/90
In mixed form: 217/90

MathStep (Works offline)

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