Add 84/70 and 42/98
1st number: 1 14/70, 2nd number: 42/98
84/70 + 42/98 is 57/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
84/70 = 84 × 7/70 × 7 = 588/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
42/98 = 42 × 5/98 × 5 = 210/490 - Add the two like fractions:
588/490 + 210/490 = 588 + 210/490 = 798/490 - 798/490 simplified gives 57/35
- So, 84/70 + 42/98 = 57/35
In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+84/98