Add 15/35 and 40/70
15/35 + 40/70 is 1/1.
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,
15/35 = 15 × 2/35 × 2 = 30/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
40/70 = 40 × 1/70 × 1 = 40/70 - Add the two like fractions:
30/70 + 40/70 = 30 + 40/70 = 70/70 - 70/70 simplified gives 1/1
- So, 15/35 + 40/70 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+40/70 15/35+80/70 15/70+40/70 45/35+40/70 75/35+40/70