Add 4/12 and 5/7
4/12 + 5/7 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
4/12 = 4 × 7/12 × 7 = 28/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
5/7 = 5 × 12/7 × 12 = 60/84 - Add the two like fractions:
28/84 + 60/84 = 28 + 60/84 = 88/84 - 88/84 simplified gives 22/21
- So, 4/12 + 5/7 = 22/21
In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12+5/7 4/12+10/7 4/24+5/7 4/12+5/14 4/12+15/7 4/36+5/7 4/12+5/21 20/12+5/7 4/12+25/7 4/60+5/7 4/12+5/35 28/12+5/7 4/12+35/7 4/84+5/7 4/12+5/49