Add 21/14 and 84/25
1st number: 1 7/14, 2nd number: 3 9/25
21/14 + 84/25 is 243/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 14 × 25 = 350,
21/14 = 21 × 25/14 × 25 = 525/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
84/25 = 84 × 14/25 × 14 = 1176/350 - Add the two like fractions:
525/350 + 1176/350 = 525 + 1176/350 = 1701/350 - 1701/350 simplified gives 243/50
- So, 21/14 + 84/25 = 243/50
In mixed form: 443/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+84/25 21/28+84/25 21/14+84/50 63/14+84/25 21/42+84/25 21/14+84/75 21/70+84/25 21/98+84/25