Add 18/8 and 45/12
1st number: 2 2/8, 2nd number: 3 9/12
18/8 + 45/12 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
18/8 = 18 × 3/8 × 3 = 54/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
45/12 = 45 × 2/12 × 2 = 90/24 - Add the two like fractions:
54/24 + 90/24 = 54 + 90/24 = 144/24 - 144/24 simplified gives 6/1
- So, 18/8 + 45/12 = 6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+45/12 18/8+90/12 18/16+45/12 18/8+45/24 54/8+45/12 18/24+45/12 18/8+45/36 90/8+45/12 18/40+45/12 18/8+45/60 18/56+45/12 18/8+45/84