Add 70/9 and 5/80
1st number: 7 7/9, 2nd number: 5/80
70/9 + 5/80 is 1129/144.
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,
5/80 = 5 × 9/80 × 9 = 45/720 - Add the two like fractions:
5600/720 + 45/720 = 5600 + 45/720 = 5645/720 - 5645/720 simplified gives 1129/144
- So, 70/9 + 5/80 = 1129/144
In mixed form: 7121/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9+10/80 70/18+5/80 70/9+15/80 70/27+5/80 70/9+25/80 70/45+5/80 70/9+35/80 70/63+5/80