Add 40/14 and 18/20
1st number: 2 12/14, 2nd number: 18/20
40/14 + 18/20 is 263/70.
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,
40/14 = 40 × 10/14 × 10 = 400/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Add the two like fractions:
400/140 + 126/140 = 400 + 126/140 = 526/140 - 526/140 simplified gives 263/70
- So, 40/14 + 18/20 = 263/70
In mixed form: 353/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14+18/20 40/14+36/20 40/28+18/20 40/14+18/40 40/14+54/20 40/42+18/20 40/14+18/60 40/14+90/20 40/70+18/20 40/98+18/20