Add 12/4 and 45/5
1st number: 3 0/4, 2nd number: 9 0/5
12/4 + 45/5 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
12/4 = 12 × 5/4 × 5 = 60/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
45/5 = 45 × 4/5 × 4 = 180/20 - Add the two like fractions:
60/20 + 180/20 = 60 + 180/20 = 240/20 - 240/20 simplified gives 12/1
- So, 12/4 + 45/5 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/4+45/5 12/4+90/5 12/8+45/5 12/4+45/10 36/4+45/5 12/4+45/15 60/4+45/5 12/20+45/5 12/4+45/25 84/4+45/5 12/28+45/5 12/4+45/35