Add 30/27 and 15/30
1st number: 1 3/27, 2nd number: 15/30
30/27 + 15/30 is 29/18.
Steps for adding fractions
- 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,
30/27 = 30 × 10/27 × 10 = 300/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
15/30 = 15 × 9/30 × 9 = 135/270 - Add the two like fractions:
300/270 + 135/270 = 300 + 135/270 = 435/270 - 435/270 simplified gives 29/18
- So, 30/27 + 15/30 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/27+15/30 30/54+15/30 30/27+15/60 90/27+15/30 30/27+45/30 30/81+15/30 30/27+15/90 30/27+75/30