Add 12/45 and 28/30
12/45 + 28/30 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
28/30 = 28 × 3/30 × 3 = 84/90 - Add the two like fractions:
24/90 + 84/90 = 24 + 84/90 = 108/90 - 108/90 simplified gives 6/5
- So, 12/45 + 28/30 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+28/30 12/45+56/30 12/90+28/30 12/45+28/60 36/45+28/30 12/45+84/30 12/45+28/90 60/45+28/30 84/45+28/30