Add 12/72 and 80/75
1st number: 12/72, 2nd number: 1 5/75
12/72 + 80/75 is 37/30.
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,
12/72 = 12 × 25/72 × 25 = 300/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
80/75 = 80 × 24/75 × 24 = 1920/1800 - Add the two like fractions:
300/1800 + 1920/1800 = 300 + 1920/1800 = 2220/1800 - 2220/1800 simplified gives 37/30
- So, 12/72 + 80/75 = 37/30
In mixed form: 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+80/75 36/72+80/75 60/72+80/75 84/72+80/75