Add 45/12 and 40/10
1st number: 3 9/12, 2nd number: 4 0/10
45/12 + 40/10 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
40/10 = 40 × 6/10 × 6 = 240/60 - Add the two like fractions:
225/60 + 240/60 = 225 + 240/60 = 465/60 - 465/60 simplified gives 31/4
- So, 45/12 + 40/10 = 31/4
In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+40/10 45/12+80/10 45/24+40/10 45/12+40/20 45/36+40/10 45/12+40/30 45/60+40/10 45/12+40/50 45/84+40/10 45/12+40/70