Add 28/25 and 18/7
1st number: 1 3/25, 2nd number: 2 4/7
28/25 + 18/7 is 646/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
28/25 = 28 × 7/25 × 7 = 196/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
18/7 = 18 × 25/7 × 25 = 450/175 - Add the two like fractions:
196/175 + 450/175 = 196 + 450/175 = 646/175 - So, 28/25 + 18/7 = 646/175
In mixed form: 3121/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/25+18/7 28/25+36/7 28/50+18/7 28/25+18/14 84/25+18/7 28/25+54/7 28/75+18/7 28/25+18/21 28/25+90/7 28/25+18/35 28/25+18/49