Add 18/14 and 25/20
1st number: 1 4/14, 2nd number: 1 5/20
18/14 + 25/20 is 71/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
18/14 = 18 × 10/14 × 10 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
25/20 = 25 × 7/20 × 7 = 175/140 - Add the two like fractions:
180/140 + 175/140 = 180 + 175/140 = 355/140 - 355/140 simplified gives 71/28
- So, 18/14 + 25/20 = 71/28
In mixed form: 215/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14+25/20 18/14+50/20 18/28+25/20 18/14+25/40 54/14+25/20 18/14+75/20 18/42+25/20 18/14+25/60 90/14+25/20 18/70+25/20 18/98+25/20