Add 9/4 and 40/80
1st number: 2 1/4, 2nd number: 40/80
9/4 + 40/80 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
9/4 = 9 × 20/4 × 20 = 180/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
40/80 = 40 × 1/80 × 1 = 40/80 - Add the two like fractions:
180/80 + 40/80 = 180 + 40/80 = 220/80 - 220/80 simplified gives 11/4
- So, 9/4 + 40/80 = 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+40/80 9/8+40/80 27/4+40/80 9/12+40/80 45/4+40/80 9/20+40/80 63/4+40/80 9/28+40/80