Add 20/2 and 40/5
1st number: 10 0/2, 2nd number: 8 0/5
20/2 + 40/5 is 18/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
20/2 = 20 × 5/2 × 5 = 100/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
40/5 = 40 × 2/5 × 2 = 80/10 - Add the two like fractions:
100/10 + 80/10 = 100 + 80/10 = 180/10 - 180/10 simplified gives 18/1
- So, 20/2 + 40/5 = 18/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+40/5 20/2+80/5 20/4+40/5 20/2+40/10 60/2+40/5 20/6+40/5 20/2+40/15 20/10+40/5 20/2+40/25 20/14+40/5 20/2+40/35