Add 28/90 and 90/24
1st number: 28/90, 2nd number: 3 18/24
28/90 + 90/24 is 731/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
28/90 = 28 × 4/90 × 4 = 112/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
90/24 = 90 × 15/24 × 15 = 1350/360 - Add the two like fractions:
112/360 + 1350/360 = 112 + 1350/360 = 1462/360 - 1462/360 simplified gives 731/180
- So, 28/90 + 90/24 = 731/180
In mixed form: 411/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+90/24 28/90+90/48 84/90+90/24 28/90+90/72