Add 2/40 and 21/36
2/40 + 21/36 is 19/30.
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,
2/40 = 2 × 9/40 × 9 = 18/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
21/36 = 21 × 10/36 × 10 = 210/360 - Add the two like fractions:
18/360 + 210/360 = 18 + 210/360 = 228/360 - 228/360 simplified gives 19/30
- So, 2/40 + 21/36 = 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+21/36 2/40+42/36 2/80+21/36 2/40+21/72 6/40+21/36 2/40+63/36 10/40+21/36 14/40+21/36