Add 90/27 and 28/30
1st number: 3 9/27, 2nd number: 28/30
90/27 + 28/30 is 64/15.
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,
90/27 = 90 × 10/27 × 10 = 900/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
28/30 = 28 × 9/30 × 9 = 252/270 - Add the two like fractions:
900/270 + 252/270 = 900 + 252/270 = 1152/270 - 1152/270 simplified gives 64/15
- So, 90/27 + 28/30 = 64/15
In mixed form: 44/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+56/30 90/54+28/30 90/27+28/60 90/27+84/30 90/81+28/30 90/27+28/90