Add 8/28 and 40/18
1st number: 8/28, 2nd number: 2 4/18
8/28 + 40/18 is 158/63.
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,
8/28 = 8 × 9/28 × 9 = 72/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
40/18 = 40 × 14/18 × 14 = 560/252 - Add the two like fractions:
72/252 + 560/252 = 72 + 560/252 = 632/252 - 632/252 simplified gives 158/63
- So, 8/28 + 40/18 = 158/63
In mixed form: 232/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+40/18 8/28+80/18 8/56+40/18 8/28+40/36 24/28+40/18 8/84+40/18 8/28+40/54 40/28+40/18 8/28+40/90 56/28+40/18