Add 21/25 and 28/98
21/25 + 28/98 is 197/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 98 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 25 × 98 = 2450,
21/25 = 21 × 98/25 × 98 = 2058/2450 - Likewise, for the 2nd fraction, since 98 × 25 = 2450,
28/98 = 28 × 25/98 × 25 = 700/2450 - Add the two like fractions:
2058/2450 + 700/2450 = 2058 + 700/2450 = 2758/2450 - 2758/2450 simplified gives 197/175
- So, 21/25 + 28/98 = 197/175
In mixed form: 122/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25+28/98 21/25+56/98 21/50+28/98 63/25+28/98 21/25+84/98 21/75+28/98