Add 20/5 and 18/70
1st number: 4 0/5, 2nd number: 18/70
20/5 + 18/70 is 149/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
20/5 = 20 × 14/5 × 14 = 280/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Add the two like fractions:
280/70 + 18/70 = 280 + 18/70 = 298/70 - 298/70 simplified gives 149/35
- So, 20/5 + 18/70 = 149/35
In mixed form: 49/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+18/70 20/5+36/70 20/10+18/70 60/5+18/70 20/5+54/70 20/15+18/70 20/5+90/70 20/25+18/70 20/35+18/70