Add 18/40 and 6/10
18/40 + 6/10 is 21/20.
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,
6/10 = 6 × 4/10 × 4 = 24/40 - Add the two like fractions:
18/40 + 24/40 = 18 + 24/40 = 42/40 - 42/40 simplified gives 21/20
- So, 18/40 + 6/10 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/40+6/10 18/40+12/10 18/80+6/10 18/40+6/20 54/40+6/10 18/40+18/10 18/40+6/30 90/40+6/10 18/40+30/10 18/40+6/50 18/40+42/10 18/40+6/70