Add 9/4 and 90/18
1st number: 2 1/4, 2nd number: 5 0/18
9/4 + 90/18 is 29/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
9/4 = 9 × 9/4 × 9 = 81/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
90/18 = 90 × 2/18 × 2 = 180/36 - Add the two like fractions:
81/36 + 180/36 = 81 + 180/36 = 261/36 - 261/36 simplified gives 29/4
- So, 9/4 + 90/18 = 29/4
In mixed form: 71/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4+90/18 9/8+90/18 9/4+90/36 27/4+90/18 9/12+90/18 9/4+90/54 45/4+90/18 9/20+90/18 63/4+90/18 9/28+90/18