Add 6/40 and 9/72
6/40 + 9/72 is 11/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 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 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Add the two like fractions:
54/360 + 45/360 = 54 + 45/360 = 99/360 - 99/360 simplified gives 11/40
- So, 6/40 + 9/72 = 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+9/72 6/40+18/72 6/80+9/72 18/40+9/72 6/40+27/72 30/40+9/72 6/40+45/72 42/40+9/72 6/40+63/72