Add 90/14 and 40/20
1st number: 6 6/14, 2nd number: 2 0/20
90/14 + 40/20 is 59/7.
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,
90/14 = 90 × 10/14 × 10 = 900/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
40/20 = 40 × 7/20 × 7 = 280/140 - Add the two like fractions:
900/140 + 280/140 = 900 + 280/140 = 1180/140 - 1180/140 simplified gives 59/7
- So, 90/14 + 40/20 = 59/7
In mixed form: 83/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+80/20 90/28+40/20 90/42+40/20 90/14+40/60 90/70+40/20 90/98+40/20