Add 25/84 and 84/70
1st number: 25/84, 2nd number: 1 14/70
25/84 + 84/70 is 629/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
25/84 = 25 × 5/84 × 5 = 125/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420 - Add the two like fractions:
125/420 + 504/420 = 125 + 504/420 = 629/420 - So, 25/84 + 84/70 = 629/420
In mixed form: 1209/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+84/70 75/84+84/70