Add 90/27 and 84/45
1st number: 3 9/27, 2nd number: 1 39/45
90/27 + 84/45 is 26/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
90/27 = 90 × 5/27 × 5 = 450/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
84/45 = 84 × 3/45 × 3 = 252/135 - Add the two like fractions:
450/135 + 252/135 = 450 + 252/135 = 702/135 - 702/135 simplified gives 26/5
- So, 90/27 + 84/45 = 26/5
In mixed form: 51/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+84/45 90/27+84/90 90/81+84/45