Add 18/28 and 12/7
1st number: 18/28, 2nd number: 1 5/7
18/28 + 12/7 is 33/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
18/28 = 18 × 1/28 × 1 = 18/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
12/7 = 12 × 4/7 × 4 = 48/28 - Add the two like fractions:
18/28 + 48/28 = 18 + 48/28 = 66/28 - 66/28 simplified gives 33/14
- So, 18/28 + 12/7 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+12/7 18/28+24/7 18/56+12/7 18/28+12/14 54/28+12/7 18/28+36/7 18/84+12/7 18/28+12/21 90/28+12/7 18/28+60/7 18/28+12/35 18/28+84/7 18/28+12/49