Add 18/15 and 70/25
1st number: 1 3/15, 2nd number: 2 20/25
18/15 + 70/25 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
18/15 = 18 × 5/15 × 5 = 90/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
70/25 = 70 × 3/25 × 3 = 210/75 - Add the two like fractions:
90/75 + 210/75 = 90 + 210/75 = 300/75 - 300/75 simplified gives 4/1
- So, 18/15 + 70/25 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+70/25 18/30+70/25 18/15+70/50 54/15+70/25 18/45+70/25 18/15+70/75 90/15+70/25 18/75+70/25