Add 4/28 and 12/9
1st number: 4/28, 2nd number: 1 3/9
4/28 + 12/9 is 31/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
4/28 = 4 × 9/28 × 9 = 36/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
12/9 = 12 × 28/9 × 28 = 336/252 - Add the two like fractions:
36/252 + 336/252 = 36 + 336/252 = 372/252 - 372/252 simplified gives 31/21
- So, 4/28 + 12/9 = 31/21
In mixed form: 110/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+12/9 4/28+24/9 4/56+12/9 4/28+12/18 12/28+12/9 4/28+36/9 4/84+12/9 4/28+12/27 20/28+12/9 4/28+60/9 4/28+12/45 4/28+84/9 4/28+12/63