Add 12/30 and 36/9
1st number: 12/30, 2nd number: 4 0/9
12/30 + 36/9 is 22/5.
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,
12/30 = 12 × 3/30 × 3 = 36/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
36/9 = 36 × 10/9 × 10 = 360/90 - Add the two like fractions:
36/90 + 360/90 = 36 + 360/90 = 396/90 - 396/90 simplified gives 22/5
- So, 12/30 + 36/9 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+36/9 12/30+72/9 12/60+36/9 12/30+36/18 36/30+36/9 12/90+36/9 12/30+36/27 60/30+36/9 12/30+36/45 84/30+36/9 12/30+36/63