Add 70/35 and 42/98
1st number: 2 0/35, 2nd number: 42/98
70/35 + 42/98 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 35 × 14 = 490,
70/35 = 70 × 14/35 × 14 = 980/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
42/98 = 42 × 5/98 × 5 = 210/490 - Add the two like fractions:
980/490 + 210/490 = 980 + 210/490 = 1190/490 - 1190/490 simplified gives 17/7
- So, 70/35 + 42/98 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/35+84/98