Add 40/12 and 5/20
1st number: 3 4/12, 2nd number: 5/20
40/12 + 5/20 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Add the two like fractions:
200/60 + 15/60 = 200 + 15/60 = 215/60 - 215/60 simplified gives 43/12
- So, 40/12 + 5/20 = 43/12
In mixed form: 37/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+5/20 40/12+10/20 40/24+5/20 40/12+5/40 40/12+15/20 40/36+5/20 40/12+5/60 40/12+25/20 40/60+5/20 40/12+35/20 40/84+5/20