Add 50/20 and 70/15
1st number: 2 10/20, 2nd number: 4 10/15
50/20 + 70/15 is 43/6.
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,
50/20 = 50 × 3/20 × 3 = 150/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
70/15 = 70 × 4/15 × 4 = 280/60 - Add the two like fractions:
150/60 + 280/60 = 150 + 280/60 = 430/60 - 430/60 simplified gives 43/6
- So, 50/20 + 70/15 = 43/6
In mixed form: 71/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40+70/15 50/20+70/30 50/60+70/15 50/20+70/45 50/20+70/75