Add 28/3 and 42/45
1st number: 9 1/3, 2nd number: 42/45
28/3 + 42/45 is 154/15.
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,
28/3 = 28 × 15/3 × 15 = 420/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
42/45 = 42 × 1/45 × 1 = 42/45 - Add the two like fractions:
420/45 + 42/45 = 420 + 42/45 = 462/45 - 462/45 simplified gives 154/15
- So, 28/3 + 42/45 = 154/15
In mixed form: 104/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/3+42/45 28/3+84/45 28/6+42/45 28/3+42/90 84/3+42/45 28/9+42/45 28/15+42/45 28/21+42/45