Add 70/50 and 18/20
1st number: 1 20/50, 2nd number: 18/20
70/50 + 18/20 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
70/50 = 70 × 2/50 × 2 = 140/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
18/20 = 18 × 5/20 × 5 = 90/100 - Add the two like fractions:
140/100 + 90/100 = 140 + 90/100 = 230/100 - 230/100 simplified gives 23/10
- So, 70/50 + 18/20 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50+36/20 70/50+18/40 70/50+54/20 70/50+18/60 70/50+90/20