Add 75/25 and 28/80
1st number: 3 0/25, 2nd number: 28/80
75/25 + 28/80 is 67/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
75/25 = 75 × 16/25 × 16 = 1200/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
28/80 = 28 × 5/80 × 5 = 140/400 - Add the two like fractions:
1200/400 + 140/400 = 1200 + 140/400 = 1340/400 - 1340/400 simplified gives 67/20
- So, 75/25 + 28/80 = 67/20
In mixed form: 37/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/25+56/80 75/50+28/80 75/25+84/80