Add 15/20 and 10/4
1st number: 15/20, 2nd number: 2 2/4
15/20 + 10/4 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
10/4 = 10 × 5/4 × 5 = 50/20 - Add the two like fractions:
15/20 + 50/20 = 15 + 50/20 = 65/20 - 65/20 simplified gives 13/4
- So, 15/20 + 10/4 = 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: 30/20+10/4 15/20+20/4 15/40+10/4 15/20+10/8 45/20+10/4 15/20+30/4 15/60+10/4 15/20+10/12 75/20+10/4 15/20+50/4 15/20+10/20 15/20+70/4 15/20+10/28