Add 20/24 and 20/45
20/24 + 20/45 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 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 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Add the two like fractions:
300/360 + 160/360 = 300 + 160/360 = 460/360 - 460/360 simplified gives 23/18
- So, 20/24 + 20/45 = 23/18
In mixed form: 15/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+20/45 20/24+40/45 20/48+20/45 20/24+20/90 60/24+20/45 20/24+60/45 20/72+20/45