Add 20/14 and 40/5
1st number: 1 6/14, 2nd number: 8 0/5
20/14 + 40/5 is 66/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
20/14 = 20 × 5/14 × 5 = 100/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
40/5 = 40 × 14/5 × 14 = 560/70 - Add the two like fractions:
100/70 + 560/70 = 100 + 560/70 = 660/70 - 660/70 simplified gives 66/7
- So, 20/14 + 40/5 = 66/7
In mixed form: 93/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14+40/5 20/14+80/5 20/28+40/5 20/14+40/10 60/14+40/5 20/42+40/5 20/14+40/15 20/70+40/5 20/14+40/25 20/98+40/5 20/14+40/35