Add 7/98 and 70/20
1st number: 7/98, 2nd number: 3 10/20
7/98 + 70/20 is 25/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 98 × 10 = 980,
7/98 = 7 × 10/98 × 10 = 70/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
70/20 = 70 × 49/20 × 49 = 3430/980 - Add the two like fractions:
70/980 + 3430/980 = 70 + 3430/980 = 3500/980 - 3500/980 simplified gives 25/7
- So, 7/98 + 70/20 = 25/7
In mixed form: 34/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98+70/20 7/98+70/40 21/98+70/20 7/98+70/60 35/98+70/20 49/98+70/20