Add 18/40 and 4/10
18/40 + 4/10 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
4/10 = 4 × 4/10 × 4 = 16/40 - Add the two like fractions:
18/40 + 16/40 = 18 + 16/40 = 34/40 - 34/40 simplified gives 17/20
- So, 18/40 + 4/10 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/40+4/10 18/40+8/10 18/80+4/10 18/40+4/20 54/40+4/10 18/40+12/10 18/40+4/30 90/40+4/10 18/40+20/10 18/40+4/50 18/40+28/10 18/40+4/70