Add 60/72 and 72/40
1st number: 60/72, 2nd number: 1 32/40
60/72 + 72/40 is 79/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
72/40 = 72 × 9/40 × 9 = 648/360 - Add the two like fractions:
300/360 + 648/360 = 300 + 648/360 = 948/360 - 948/360 simplified gives 79/30
- So, 60/72 + 72/40 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+72/80