Add 12/3 and 30/45
1st number: 4 0/3, 2nd number: 30/45
12/3 + 30/45 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
12/3 = 12 × 15/3 × 15 = 180/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
30/45 = 30 × 1/45 × 1 = 30/45 - Add the two like fractions:
180/45 + 30/45 = 180 + 30/45 = 210/45 - 210/45 simplified gives 14/3
- So, 12/3 + 30/45 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+30/45 12/3+60/45 12/6+30/45 12/3+30/90 36/3+30/45 12/3+90/45 12/9+30/45 60/3+30/45 12/15+30/45 84/3+30/45 12/21+30/45