Add 6/7 and 28/80
6/7 + 28/80 is 169/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
6/7 = 6 × 80/7 × 80 = 480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
28/80 = 28 × 7/80 × 7 = 196/560 - Add the two like fractions:
480/560 + 196/560 = 480 + 196/560 = 676/560 - 676/560 simplified gives 169/140
- So, 6/7 + 28/80 = 169/140
In mixed form: 129/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7+28/80 6/7+56/80 6/14+28/80 18/7+28/80 6/7+84/80 6/21+28/80 30/7+28/80 6/35+28/80 42/7+28/80 6/49+28/80