Add 5/20 and 70/98
5/20 + 70/98 is 27/28.
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,
5/20 = 5 × 49/20 × 49 = 245/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
70/98 = 70 × 10/98 × 10 = 700/980 - Add the two like fractions:
245/980 + 700/980 = 245 + 700/980 = 945/980 - 945/980 simplified gives 27/28
- So, 5/20 + 70/98 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+70/98 5/40+70/98 15/20+70/98 5/60+70/98 25/20+70/98 35/20+70/98