Add 10/28 and 84/18
1st number: 10/28, 2nd number: 4 12/18
10/28 + 84/18 is 211/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
10/28 = 10 × 9/28 × 9 = 90/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
84/18 = 84 × 14/18 × 14 = 1176/252 - Add the two like fractions:
90/252 + 1176/252 = 90 + 1176/252 = 1266/252 - 1266/252 simplified gives 211/42
- So, 10/28 + 84/18 = 211/42
In mixed form: 51/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28+84/18 10/56+84/18 10/28+84/36 30/28+84/18 10/84+84/18 10/28+84/54 50/28+84/18 10/28+84/90 70/28+84/18