Add 18/6 and 25/20, Solve 3 0/6 + 1 5/20 as a fraction

Add 18/6 and 25/20

1^st number: 3 0/6, 2^nd number: 1 5/20

18/6 + 25/20 is 17/4.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 6 × 10 = 60,
18/6 = 18 × 10/6 × 10 = 180/60
Likewise, for the 2nd fraction, since 20 × 3 = 60,
25/20 = 25 × 3/20 × 3 = 75/60
Add the two like fractions:
180/60 + 75/60 = 180 + 75/60 = 255/60
255/60 simplified gives 17/4
So, 18/6 + 25/20 = 17/4
In mixed form: 41/4

MathStep (Works offline)

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