Add 25/15 and 70/90
1st number: 1 10/15, 2nd number: 70/90
25/15 + 70/90 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
25/15 = 25 × 6/15 × 6 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Add the two like fractions:
150/90 + 70/90 = 150 + 70/90 = 220/90 - 220/90 simplified gives 22/9
- So, 25/15 + 70/90 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+70/90 25/30+70/90 75/15+70/90 25/45+70/90 25/75+70/90