Add 28/2 and 15/45
1st number: 14 0/2, 2nd number: 15/45
28/2 + 15/45 is 43/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
28/2 = 28 × 45/2 × 45 = 1260/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
15/45 = 15 × 2/45 × 2 = 30/90 - Add the two like fractions:
1260/90 + 30/90 = 1260 + 30/90 = 1290/90 - 1290/90 simplified gives 43/3
- So, 28/2 + 15/45 = 43/3
In mixed form: 141/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2+15/45 28/2+30/45 28/4+15/45 28/2+15/90 84/2+15/45 28/6+15/45 28/2+75/45 28/10+15/45 28/14+15/45