Add 15/30 and 36/9
1st number: 15/30, 2nd number: 4 0/9
15/30 + 36/9 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
15/30 = 15 × 3/30 × 3 = 45/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
36/9 = 36 × 10/9 × 10 = 360/90 - Add the two like fractions:
45/90 + 360/90 = 45 + 360/90 = 405/90 - 405/90 simplified gives 9/2
- So, 15/30 + 36/9 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30+72/9 15/60+36/9 15/30+36/18 45/30+36/9 15/90+36/9 15/30+36/27 75/30+36/9 15/30+36/45 15/30+36/63