Add 9/4 and 10/20
1st number: 2 1/4, 2nd number: 10/20
9/4 + 10/20 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
9/4 = 9 × 5/4 × 5 = 45/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
10/20 = 10 × 1/20 × 1 = 10/20 - Add the two like fractions:
45/20 + 10/20 = 45 + 10/20 = 55/20 - 55/20 simplified gives 11/4
- So, 9/4 + 10/20 = 11/4
In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4+10/20 9/8+10/20 9/4+10/40 27/4+10/20 9/4+30/20 9/12+10/20 9/4+10/60 45/4+10/20 9/4+50/20 9/20+10/20 63/4+10/20 9/4+70/20 9/28+10/20