Add 5/80 and 28/7
1st number: 5/80, 2nd number: 4 0/7
5/80 + 28/7 is 65/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
5/80 = 5 × 7/80 × 7 = 35/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
28/7 = 28 × 80/7 × 80 = 2240/560 - Add the two like fractions:
35/560 + 2240/560 = 35 + 2240/560 = 2275/560 - 2275/560 simplified gives 65/16
- So, 5/80 + 28/7 = 65/16
In mixed form: 41/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80+28/7 5/80+56/7 5/80+28/14 15/80+28/7 5/80+84/7 5/80+28/21 25/80+28/7 5/80+28/35 35/80+28/7 5/80+28/49