Add 45/12 and 2/40
1st number: 3 9/12, 2nd number: 2/40
45/12 + 2/40 is 19/5.
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,
2/40 = 2 × 3/40 × 3 = 6/120 - Add the two like fractions:
450/120 + 6/120 = 450 + 6/120 = 456/120 - 456/120 simplified gives 19/5
- So, 45/12 + 2/40 = 19/5
In mixed form: 34/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+2/40 45/12+4/40 45/24+2/40 45/12+2/80 45/12+6/40 45/36+2/40 45/12+10/40 45/60+2/40 45/12+14/40 45/84+2/40