Add 15/4 and 40/20
1st number: 3 3/4, 2nd number: 2 0/20
15/4 + 40/20 is 23/4.
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,
15/4 = 15 × 5/4 × 5 = 75/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
40/20 = 40 × 1/20 × 1 = 40/20 - Add the two like fractions:
75/20 + 40/20 = 75 + 40/20 = 115/20 - 115/20 simplified gives 23/4
- So, 15/4 + 40/20 = 23/4
In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+40/20 15/4+80/20 15/8+40/20 45/4+40/20 15/12+40/20 15/4+40/60 75/4+40/20 15/20+40/20 15/28+40/20