Add 20/90 and 6/80
20/90 + 6/80 is 107/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
20/90 = 20 × 8/90 × 8 = 160/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
6/80 = 6 × 9/80 × 9 = 54/720 - Add the two like fractions:
160/720 + 54/720 = 160 + 54/720 = 214/720 - 214/720 simplified gives 107/360
- So, 20/90 + 6/80 = 107/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+6/80 20/90+12/80 60/90+6/80 20/90+18/80 20/90+30/80 20/90+42/80