Add 20/10 and 5/4
1st number: 2 0/10, 2nd number: 1 1/4
20/10 + 5/4 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
20/10 = 20 × 2/10 × 2 = 40/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
5/4 = 5 × 5/4 × 5 = 25/20 - Add the two like fractions:
40/20 + 25/20 = 40 + 25/20 = 65/20 - 65/20 simplified gives 13/4
- So, 20/10 + 5/4 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10+5/4 20/10+10/4 20/10+5/8 60/10+5/4 20/10+15/4 20/30+5/4 20/10+5/12 20/10+25/4 20/50+5/4 20/10+5/20 20/10+35/4 20/70+5/4 20/10+5/28