Add 4/40 and 18/20
4/40 + 18/20 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
4/40 = 4 × 1/40 × 1 = 4/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
18/20 = 18 × 2/20 × 2 = 36/40 - Add the two like fractions:
4/40 + 36/40 = 4 + 36/40 = 40/40 - 40/40 simplified gives 1/1
- So, 4/40 + 18/20 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/40+18/20 4/40+36/20 4/80+18/20 4/40+18/40 12/40+18/20 4/40+54/20 4/40+18/60 20/40+18/20 4/40+90/20 28/40+18/20