Add 30/4 and 90/9
1st number: 7 2/4, 2nd number: 10 0/9
30/4 + 90/9 is 35/2.
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,
30/4 = 30 × 9/4 × 9 = 270/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
90/9 = 90 × 4/9 × 4 = 360/36 - Add the two like fractions:
270/36 + 360/36 = 270 + 360/36 = 630/36 - 630/36 simplified gives 35/2
- So, 30/4 + 90/9 = 35/2
In mixed form: 171/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+90/9 30/8+90/9 30/4+90/18 90/4+90/9 30/12+90/9 30/4+90/27 30/20+90/9 30/4+90/45 30/28+90/9 30/4+90/63