Add 70/9 and 18/80
1st number: 7 7/9, 2nd number: 18/80
70/9 + 18/80 is 2881/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
70/9 = 70 × 80/9 × 80 = 5600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Add the two like fractions:
5600/720 + 162/720 = 5600 + 162/720 = 5762/720 - 5762/720 simplified gives 2881/360
- So, 70/9 + 18/80 = 2881/360
In mixed form: 81/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+36/80 70/18+18/80 70/9+54/80 70/27+18/80 70/9+90/80 70/45+18/80 70/63+18/80