Add 70/80 and 36/9
1st number: 70/80, 2nd number: 4 0/9
70/80 + 36/9 is 39/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
70/80 = 70 × 9/80 × 9 = 630/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
36/9 = 36 × 80/9 × 80 = 2880/720 - Add the two like fractions:
630/720 + 2880/720 = 630 + 2880/720 = 3510/720 - 3510/720 simplified gives 39/8
- So, 70/80 + 36/9 = 39/8
In mixed form: 47/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+72/9 70/80+36/18 70/80+36/27 70/80+36/45 70/80+36/63