Add 3/20 and 7/98
3/20 + 7/98 is 31/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
3/20 = 3 × 49/20 × 49 = 147/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
7/98 = 7 × 10/98 × 10 = 70/980 - Add the two like fractions:
147/980 + 70/980 = 147 + 70/980 = 217/980 - 217/980 simplified gives 31/140
- So, 3/20 + 7/98 = 31/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+7/98 3/20+14/98 3/40+7/98 9/20+7/98 3/20+21/98 3/60+7/98 15/20+7/98 3/20+35/98 21/20+7/98 3/20+49/98