Add 4/35 and 20/40
4/35 + 20/40 is 43/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
4/35 = 4 × 8/35 × 8 = 32/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Add the two like fractions:
32/280 + 140/280 = 32 + 140/280 = 172/280 - 172/280 simplified gives 43/70
- So, 4/35 + 20/40 = 43/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/35+20/40 4/70+20/40 4/35+20/80 12/35+20/40 4/35+60/40 20/35+20/40 28/35+20/40