Add 40/28 and 14/18
1st number: 1 12/28, 2nd number: 14/18
40/28 + 14/18 is 139/63.
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,
40/28 = 40 × 9/28 × 9 = 360/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
14/18 = 14 × 14/18 × 14 = 196/252 - Add the two like fractions:
360/252 + 196/252 = 360 + 196/252 = 556/252 - 556/252 simplified gives 139/63
- So, 40/28 + 14/18 = 139/63
In mixed form: 213/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+14/18 40/28+28/18 40/56+14/18 40/28+14/36 40/28+42/18 40/84+14/18 40/28+14/54 40/28+70/18 40/28+14/90 40/28+98/18