Add 3/12 and 5/28
3/12 + 5/28 is 3/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
5/28 = 5 × 3/28 × 3 = 15/84 - Add the two like fractions:
21/84 + 15/84 = 21 + 15/84 = 36/84 - 36/84 simplified gives 3/7
- So, 3/12 + 5/28 = 3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+5/28 3/12+10/28 3/24+5/28 3/12+5/56 9/12+5/28 3/12+15/28 3/36+5/28 3/12+5/84 15/12+5/28 3/12+25/28 3/60+5/28 21/12+5/28 3/12+35/28 3/84+5/28