Add 30/28 and 12/3
1st number: 1 2/28, 2nd number: 4 0/3
30/28 + 12/3 is 71/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
30/28 = 30 × 3/28 × 3 = 90/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
12/3 = 12 × 28/3 × 28 = 336/84 - Add the two like fractions:
90/84 + 336/84 = 90 + 336/84 = 426/84 - 426/84 simplified gives 71/14
- So, 30/28 + 12/3 = 71/14
In mixed form: 51/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+12/3 30/28+24/3 30/56+12/3 30/28+12/6 90/28+12/3 30/28+36/3 30/84+12/3 30/28+12/9 30/28+60/3 30/28+12/15 30/28+84/3 30/28+12/21