Add 72/27 and 70/25
1st number: 2 18/27, 2nd number: 2 20/25
72/27 + 70/25 is 82/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 25 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 27 × 25 = 675,
72/27 = 72 × 25/27 × 25 = 1800/675 - Likewise, for the 2nd fraction, since 25 × 27 = 675,
70/25 = 70 × 27/25 × 27 = 1890/675 - Add the two like fractions:
1800/675 + 1890/675 = 1800 + 1890/675 = 3690/675 - 3690/675 simplified gives 82/15
- So, 72/27 + 70/25 = 82/15
In mixed form: 57/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/54+70/25 72/27+70/50 72/81+70/25 72/27+70/75