Add 28/98 and 14/20
28/98 + 14/20 is 69/70.
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,
28/98 = 28 × 10/98 × 10 = 280/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
14/20 = 14 × 49/20 × 49 = 686/980 - Add the two like fractions:
280/980 + 686/980 = 280 + 686/980 = 966/980 - 966/980 simplified gives 69/70
- So, 28/98 + 14/20 = 69/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98+14/20 28/98+28/20 28/98+14/40 84/98+14/20 28/98+42/20 28/98+14/60 28/98+70/20 28/98+98/20