Add 45/12 and 6/40
1st number: 3 9/12, 2nd number: 6/40
45/12 + 6/40 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
45/12 = 45 × 10/12 × 10 = 450/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Add the two like fractions:
450/120 + 18/120 = 450 + 18/120 = 468/120 - 468/120 simplified gives 39/10
- So, 45/12 + 6/40 = 39/10
In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+6/40 45/12+12/40 45/24+6/40 45/12+6/80 45/12+18/40 45/36+6/40 45/12+30/40 45/60+6/40 45/12+42/40 45/84+6/40