Add 20/24 and 15/90
20/24 + 15/90 is 1/1.
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,
15/90 = 15 × 4/90 × 4 = 60/360 - Add the two like fractions:
300/360 + 60/360 = 300 + 60/360 = 360/360 - 360/360 simplified gives 1/1
- So, 20/24 + 15/90 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+15/90 20/24+30/90 20/48+15/90 60/24+15/90 20/24+45/90 20/72+15/90 20/24+75/90