Add 90/28 and 9/18
1st number: 3 6/28, 2nd number: 9/18
90/28 + 9/18 is 26/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Add the two like fractions:
810/252 + 126/252 = 810 + 126/252 = 936/252 - 936/252 simplified gives 26/7
- So, 90/28 + 9/18 = 26/7
In mixed form: 35/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+9/18 90/28+9/36 90/28+27/18 90/84+9/18 90/28+9/54 90/28+45/18 90/28+9/90 90/28+63/18