Add 45/72 and 72/60
1st number: 45/72, 2nd number: 1 12/60
45/72 + 72/60 is 73/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
72/60 = 72 × 6/60 × 6 = 432/360 - Add the two like fractions:
225/360 + 432/360 = 225 + 432/360 = 657/360 - 657/360 simplified gives 73/40
- So, 45/72 + 72/60 = 73/40
In mixed form: 133/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+72/60