Add 60/27 and 21/30, Solve 2 6/27 + 21/30 as a fraction

Add 60/27 and 21/30

1^st number: 2 6/27, 2^nd number: 21/30

60/27 + 21/30 is 263/90.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 27 × 10 = 270,
60/27 = 60 × 10/27 × 10 = 600/270
Likewise, for the 2nd fraction, since 30 × 9 = 270,
21/30 = 21 × 9/30 × 9 = 189/270
Add the two like fractions:
600/270 + 189/270 = 600 + 189/270 = 789/270
789/270 simplified gives 263/90
So, 60/27 + 21/30 = 263/90
In mixed form: 283/90

MathStep (Works offline)

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