Add 10/20 and 70/15
1st number: 10/20, 2nd number: 4 10/15
10/20 + 70/15 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
10/20 = 10 × 3/20 × 3 = 30/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
70/15 = 70 × 4/15 × 4 = 280/60 - Add the two like fractions:
30/60 + 280/60 = 30 + 280/60 = 310/60 - 310/60 simplified gives 31/6
- So, 10/20 + 70/15 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+70/15 10/20+70/30 30/20+70/15 10/60+70/15 10/20+70/45 50/20+70/15 10/20+70/75 70/20+70/15