Add 5/40 and 75/72
1st number: 5/40, 2nd number: 1 3/72
5/40 + 75/72 is 7/6.
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,
5/40 = 5 × 9/40 × 9 = 45/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
75/72 = 75 × 5/72 × 5 = 375/360 - Add the two like fractions:
45/360 + 375/360 = 45 + 375/360 = 420/360 - 420/360 simplified gives 7/6
- So, 5/40 + 75/72 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+75/72 5/80+75/72 15/40+75/72 25/40+75/72 35/40+75/72