Add 5/18 and 90/8
1st number: 5/18, 2nd number: 11 2/8
5/18 + 90/8 is 415/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
5/18 = 5 × 4/18 × 4 = 20/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
90/8 = 90 × 9/8 × 9 = 810/72 - Add the two like fractions:
20/72 + 810/72 = 20 + 810/72 = 830/72 - 830/72 simplified gives 415/36
- So, 5/18 + 90/8 = 415/36
In mixed form: 1119/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+90/8 5/36+90/8 5/18+90/16 15/18+90/8 5/54+90/8 5/18+90/24 25/18+90/8 5/90+90/8 5/18+90/40 35/18+90/8 5/18+90/56