Add 1/70 and 20/40
1/70 + 20/40 is 18/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
1/70 = 1 × 4/70 × 4 = 4/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Add the two like fractions:
4/280 + 140/280 = 4 + 140/280 = 144/280 - 144/280 simplified gives 18/35
- So, 1/70 + 20/40 = 18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+20/40 1/70+20/80 3/70+20/40 1/70+60/40 5/70+20/40 7/70+20/40