Add 5/20 and 10/40
5/20 + 10/40 is 1/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
5/20 = 5 × 2/20 × 2 = 10/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
10/40 = 10 × 1/40 × 1 = 10/40 - Add the two like fractions:
10/40 + 10/40 = 10 + 10/40 = 20/40 - 20/40 simplified gives 1/2
- So, 5/20 + 10/40 = 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+10/40 5/20+20/40 5/40+10/40 5/20+10/80 15/20+10/40 5/20+30/40 5/60+10/40 25/20+10/40 5/20+50/40 35/20+10/40 5/20+70/40