Add 84/25 and 21/42
1st number: 3 9/25, 2nd number: 21/42
84/25 + 21/42 is 193/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
84/25 = 84 × 42/25 × 42 = 3528/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
21/42 = 21 × 25/42 × 25 = 525/1050 - Add the two like fractions:
3528/1050 + 525/1050 = 3528 + 525/1050 = 4053/1050 - 4053/1050 simplified gives 193/50
- So, 84/25 + 21/42 = 193/50
In mixed form: 343/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50+21/42 84/25+21/84 84/25+63/42 84/75+21/42