Add 25/45 and 70/75
25/45 + 70/75 is 67/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 75 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
25/45 = 25 × 5/45 × 5 = 125/225 - Likewise, for the 2nd fraction, since 75 × 3 = 225,
70/75 = 70 × 3/75 × 3 = 210/225 - Add the two like fractions:
125/225 + 210/225 = 125 + 210/225 = 335/225 - 335/225 simplified gives 67/45
- So, 25/45 + 70/75 = 67/45
In mixed form: 122/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+70/75 25/90+70/75 75/45+70/75