Add 3/6 and 40/90
3/6 + 40/90 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
3/6 = 3 × 15/6 × 15 = 45/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Add the two like fractions:
45/90 + 40/90 = 45 + 40/90 = 85/90 - 85/90 simplified gives 17/18
- So, 3/6 + 40/90 = 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6+80/90 3/12+40/90 9/6+40/90 3/18+40/90 15/6+40/90 3/30+40/90 21/6+40/90 3/42+40/90