Add 9/60 and 81/72
1st number: 9/60, 2nd number: 1 9/72
9/60 + 81/72 is 51/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 60 × 6 = 360,
9/60 = 9 × 6/60 × 6 = 54/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Add the two like fractions:
54/360 + 405/360 = 54 + 405/360 = 459/360 - 459/360 simplified gives 51/40
- So, 9/60 + 81/72 = 51/40
In mixed form: 111/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/60+81/72 27/60+81/72 45/60+81/72 63/60+81/72