Add 6/40 and 21/36
6/40 + 21/36 is 11/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 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 36 × 10 = 360,
21/36 = 21 × 10/36 × 10 = 210/360 - Add the two like fractions:
54/360 + 210/360 = 54 + 210/360 = 264/360 - 264/360 simplified gives 11/15
- So, 6/40 + 21/36 = 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+21/36 6/40+42/36 6/80+21/36 6/40+21/72 18/40+21/36 6/40+63/36 30/40+21/36 42/40+21/36