Add 45/18 and 60/7, Solve 2 9/18 + 8 4/7 as a fraction

Add 45/18 and 60/7

1^st number: 2 9/18, 2^nd number: 8 4/7

45/18 + 60/7 is 155/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126
Likewise, for the 2nd fraction, since 7 × 18 = 126,
60/7 = 60 × 18/7 × 18 = 1080/126
Add the two like fractions:
315/126 + 1080/126 = 315 + 1080/126 = 1395/126
1395/126 simplified gives 155/14
So, 45/18 + 60/7 = 155/14
In mixed form: 111/14

MathStep (Works offline)

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