Add 6/40 and 45/90
6/40 + 45/90 is 13/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
45/90 = 45 × 4/90 × 4 = 180/360 - Add the two like fractions:
54/360 + 180/360 = 54 + 180/360 = 234/360 - 234/360 simplified gives 13/20
- So, 6/40 + 45/90 = 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+45/90 6/80+45/90 18/40+45/90 30/40+45/90 42/40+45/90