Add 4/18 and 9/40
4/18 + 9/40 is 161/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
4/18 = 4 × 20/18 × 20 = 80/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
9/40 = 9 × 9/40 × 9 = 81/360 - Add the two like fractions:
80/360 + 81/360 = 80 + 81/360 = 161/360 - So, 4/18 + 9/40 = 161/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+9/40 4/18+18/40 4/36+9/40 4/18+9/80 12/18+9/40 4/18+27/40 4/54+9/40 20/18+9/40 4/18+45/40 4/90+9/40 28/18+9/40 4/18+63/40