Add 45/25 and 28/18
1st number: 1 20/25, 2nd number: 1 10/18
45/25 + 28/18 is 151/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
45/25 = 45 × 18/25 × 18 = 810/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
28/18 = 28 × 25/18 × 25 = 700/450 - Add the two like fractions:
810/450 + 700/450 = 810 + 700/450 = 1510/450 - 1510/450 simplified gives 151/45
- So, 45/25 + 28/18 = 151/45
In mixed form: 316/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+28/18 45/25+56/18 45/50+28/18 45/25+28/36 45/25+84/18 45/75+28/18 45/25+28/54 45/25+28/90