Add 54/72 and 80/75
1st number: 54/72, 2nd number: 1 5/75
54/72 + 80/75 is 109/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 75 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
54/72 = 54 × 25/72 × 25 = 1350/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
80/75 = 80 × 24/75 × 24 = 1920/1800 - Add the two like fractions:
1350/1800 + 1920/1800 = 1350 + 1920/1800 = 3270/1800 - 3270/1800 simplified gives 109/60
- So, 54/72 + 80/75 = 109/60
In mixed form: 149/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: