Add 35/7 and 15/18, Solve 5 0/7 + 15/18 as a fraction

Add 35/7 and 15/18

1^st number: 5 0/7, 2^nd number: 15/18

35/7 + 15/18 is 35/6.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
35/7 = 35 × 18/7 × 18 = 630/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126
Add the two like fractions:
630/126 + 105/126 = 630 + 105/126 = 735/126
735/126 simplified gives 35/6
So, 35/7 + 15/18 = 35/6
In mixed form: 55/6

MathStep (Works offline)

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