Add 20/35 and 15/70
20/35 + 15/70 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
20/35 = 20 × 2/35 × 2 = 40/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Add the two like fractions:
40/70 + 15/70 = 40 + 15/70 = 55/70 - 55/70 simplified gives 11/14
- So, 20/35 + 15/70 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+15/70 20/35+30/70 20/70+15/70 60/35+15/70 20/35+45/70 20/35+75/70