Add 30/20 and 27/7
1st number: 1 10/20, 2nd number: 3 6/7
30/20 + 27/7 is 75/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
30/20 = 30 × 7/20 × 7 = 210/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
27/7 = 27 × 20/7 × 20 = 540/140 - Add the two like fractions:
210/140 + 540/140 = 210 + 540/140 = 750/140 - 750/140 simplified gives 75/14
- So, 30/20 + 27/7 = 75/14
In mixed form: 55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+27/7 30/20+54/7 30/40+27/7 30/20+27/14 90/20+27/7 30/20+81/7 30/60+27/7 30/20+27/21 30/20+27/35 30/20+27/49