Add 75/80 and 35/9
1st number: 75/80, 2nd number: 3 8/9
75/80 + 35/9 is 695/144.
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,
75/80 = 75 × 9/80 × 9 = 675/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
35/9 = 35 × 80/9 × 80 = 2800/720 - Add the two like fractions:
675/720 + 2800/720 = 675 + 2800/720 = 3475/720 - 3475/720 simplified gives 695/144
- So, 75/80 + 35/9 = 695/144
In mixed form: 4119/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+70/9 75/80+35/18 75/80+35/27 75/80+35/45 75/80+35/63