Add 9/80 and 1/72
9/80 + 1/72 is 91/720.
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,
9/80 = 9 × 9/80 × 9 = 81/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
1/72 = 1 × 10/72 × 10 = 10/720 - Add the two like fractions:
81/720 + 10/720 = 81 + 10/720 = 91/720 - So, 9/80 + 1/72 = 91/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/80+1/72 9/80+2/72 27/80+1/72 9/80+3/72 45/80+1/72 9/80+5/72 63/80+1/72 9/80+7/72