Add 2/72 and 7/80
2/72 + 7/80 is 83/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
2/72 = 2 × 10/72 × 10 = 20/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Add the two like fractions:
20/720 + 63/720 = 20 + 63/720 = 83/720 - So, 2/72 + 7/80 = 83/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72+7/80 2/72+14/80 6/72+7/80 2/72+21/80 10/72+7/80 2/72+35/80 14/72+7/80 2/72+49/80