Add 5/4 and 40/15
1st number: 1 1/4, 2nd number: 2 10/15
5/4 + 40/15 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
5/4 = 5 × 15/4 × 15 = 75/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
40/15 = 40 × 4/15 × 4 = 160/60 - Add the two like fractions:
75/60 + 160/60 = 75 + 160/60 = 235/60 - 235/60 simplified gives 47/12
- So, 5/4 + 40/15 = 47/12
In mixed form: 311/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/4+40/15 5/4+80/15 5/8+40/15 5/4+40/30 15/4+40/15 5/12+40/15 5/4+40/45 25/4+40/15 5/20+40/15 5/4+40/75 35/4+40/15 5/28+40/15