Add 18/40 and 10/14
18/40 + 10/14 is 163/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
10/14 = 10 × 20/14 × 20 = 200/280 - Add the two like fractions:
126/280 + 200/280 = 126 + 200/280 = 326/280 - 326/280 simplified gives 163/140
- So, 18/40 + 10/14 = 163/140
In mixed form: 123/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/40+10/14 18/40+20/14 18/80+10/14 18/40+10/28 54/40+10/14 18/40+30/14 18/40+10/42 90/40+10/14 18/40+50/14 18/40+10/70 18/40+70/14 18/40+10/98