Add 30/27 and 80/90
1st number: 1 3/27, 2nd number: 80/90
30/27 + 80/90 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 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 90 × 3 = 270,
80/90 = 80 × 3/90 × 3 = 240/270 - Add the two like fractions:
300/270 + 240/270 = 300 + 240/270 = 540/270 - 540/270 simplified gives 2/1
- So, 30/27 + 80/90 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/27+80/90 30/54+80/90 90/27+80/90 30/81+80/90