Add 45/12 and 5/14
1st number: 3 9/12, 2nd number: 5/14
45/12 + 5/14 is 115/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
5/14 = 5 × 6/14 × 6 = 30/84 - Add the two like fractions:
315/84 + 30/84 = 315 + 30/84 = 345/84 - 345/84 simplified gives 115/28
- So, 45/12 + 5/14 = 115/28
In mixed form: 43/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+5/14 45/12+10/14 45/24+5/14 45/12+5/28 45/12+15/14 45/36+5/14 45/12+5/42 45/12+25/14 45/60+5/14 45/12+5/70 45/12+35/14 45/84+5/14 45/12+5/98