Add 90/4 and 4/9
1st number: 22 2/4, 2nd number: 4/9
90/4 + 4/9 is 413/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
90/4 = 90 × 9/4 × 9 = 810/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
4/9 = 4 × 4/9 × 4 = 16/36 - Add the two like fractions:
810/36 + 16/36 = 810 + 16/36 = 826/36 - 826/36 simplified gives 413/18
- So, 90/4 + 4/9 = 413/18
In mixed form: 2217/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+8/9 90/8+4/9 90/4+4/18 90/4+12/9 90/12+4/9 90/4+4/27 90/4+20/9 90/20+4/9 90/4+4/45 90/4+28/9 90/28+4/9 90/4+4/63