Add 5/80 and 2/72
5/80 + 2/72 is 13/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
5/80 = 5 × 9/80 × 9 = 45/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
2/72 = 2 × 10/72 × 10 = 20/720 - Add the two like fractions:
45/720 + 20/720 = 45 + 20/720 = 65/720 - 65/720 simplified gives 13/144
- So, 5/80 + 2/72 = 13/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80+2/72 5/80+4/72 15/80+2/72 5/80+6/72 25/80+2/72 5/80+10/72 35/80+2/72 5/80+14/72