Add 4/28 and 9/12
4/28 + 9/12 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
4/28 = 4 × 3/28 × 3 = 12/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
9/12 = 9 × 7/12 × 7 = 63/84 - Add the two like fractions:
12/84 + 63/84 = 12 + 63/84 = 75/84 - 75/84 simplified gives 25/28
- So, 4/28 + 9/12 = 25/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+9/12 4/28+18/12 4/56+9/12 4/28+9/24 12/28+9/12 4/28+27/12 4/84+9/12 4/28+9/36 20/28+9/12 4/28+45/12 4/28+9/60 4/28+63/12 4/28+9/84