Question

Which is greater 5/7 or 6/7

Answer 1

6/7 sevenths is greater than 5/7 because their is less missing.

Answer 2

5/6 or 6/7 

To find what is greater lets make the fractions into decimal. 
To convert fraction to decimal you have to divide the numerator ny the denominator. 

5/6 
⇒ 5 ÷ 6 
=  0.83333333333......

6/7 
⇒ 6 ÷ 7 
= 0.857142.....

0.857142.... is bigger then 0.83333333333...... 

Therefore 6/7 is bigger then 5/7