Add 75/80 and 16/90
75/80 + 16/90 is 803/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 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 90 × 8 = 720,
16/90 = 16 × 8/90 × 8 = 128/720 - Add the two like fractions:
675/720 + 128/720 = 675 + 128/720 = 803/720 - So, 75/80 + 16/90 = 803/720
In mixed form: 183/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+32/90 75/80+48/90 75/80+80/90