Add 3/10 and 27/9, Solve 3/10 + 3 0/9 as a fraction

Add 3/10 and 27/9

1^st number: 3/10, 2^nd number: 3 0/9

3/10 + 27/9 is 33/10.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 10 × 9 = 90,
3/10 = 3 × 9/10 × 9 = 27/90
Likewise, for the 2nd fraction, since 9 × 10 = 90,
27/9 = 27 × 10/9 × 10 = 270/90
Add the two like fractions:
27/90 + 270/90 = 27 + 270/90 = 297/90
297/90 simplified gives 33/10
So, 3/10 + 27/9 = 33/10
In mixed form: 33/10

MathStep (Works offline)

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