Add 45/12 and 4/8
1st number: 3 9/12, 2nd number: 4/8
45/12 + 4/8 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
45/12 = 45 × 2/12 × 2 = 90/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
4/8 = 4 × 3/8 × 3 = 12/24 - Add the two like fractions:
90/24 + 12/24 = 90 + 12/24 = 102/24 - 102/24 simplified gives 17/4
- So, 45/12 + 4/8 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+4/8 45/24+4/8 45/12+4/16 45/12+12/8 45/36+4/8 45/12+4/24 45/12+20/8 45/60+4/8 45/12+4/40 45/12+28/8 45/84+4/8 45/12+4/56