Add 20/24 and 27/90
20/24 + 27/90 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
20/24 = 20 × 15/24 × 15 = 300/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
27/90 = 27 × 4/90 × 4 = 108/360 - Add the two like fractions:
300/360 + 108/360 = 300 + 108/360 = 408/360 - 408/360 simplified gives 17/15
- So, 20/24 + 27/90 = 17/15
In mixed form: 12/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+27/90 20/24+54/90 20/48+27/90 60/24+27/90 20/24+81/90 20/72+27/90