Add 7/14 and 28/80
7/14 + 28/80 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
7/14 = 7 × 40/14 × 40 = 280/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
28/80 = 28 × 7/80 × 7 = 196/560 - Add the two like fractions:
280/560 + 196/560 = 280 + 196/560 = 476/560 - 476/560 simplified gives 17/20
- So, 7/14 + 28/80 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14+56/80 7/28+28/80 21/14+28/80 7/14+84/80 7/42+28/80 35/14+28/80 7/70+28/80 49/14+28/80 7/98+28/80