Add 18/8 and 27/90
1st number: 2 2/8, 2nd number: 27/90
18/8 + 27/90 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
18/8 = 18 × 45/8 × 45 = 810/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
27/90 = 27 × 4/90 × 4 = 108/360 - Add the two like fractions:
810/360 + 108/360 = 810 + 108/360 = 918/360 - 918/360 simplified gives 51/20
- So, 18/8 + 27/90 = 51/20
In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+27/90 18/8+54/90 18/16+27/90 54/8+27/90 18/8+81/90 18/24+27/90 90/8+27/90 18/40+27/90 18/56+27/90