what is a common factor in standard form . how can 12/7 be a standard form ?
A rational number is said to be in the standard form if its denominator is a positive integer and the numerator and the denominator have no common factor other than 1 .
For eg:
Standard form of 25/30=5/6
Here common factor is 5
12/7 is in standard form as it has a common factor 1