Add 40/28 and 16/18
1st number: 1 12/28, 2nd number: 16/18
40/28 + 16/18 is 146/63.
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,
16/18 = 16 × 14/18 × 14 = 224/252 - Add the two like fractions:
360/252 + 224/252 = 360 + 224/252 = 584/252 - 584/252 simplified gives 146/63
- So, 40/28 + 16/18 = 146/63
In mixed form: 220/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+16/18 40/28+32/18 40/56+16/18 40/28+16/36 40/28+48/18 40/84+16/18 40/28+16/54 40/28+80/18 40/28+16/90