Question

Which is greater? 6/7 or 98/100

Answer 1

First you need to get common dominators and then figure out from there

Answer 2

6/7 already reduced to the lowest terms;
the numerator and the denominator have no common prime factors:
6 = 2 × 3;
7 is a prime number;

98/100 = (2 × 72)/(22 × 52) = ((2 × 72) ÷ 2)/((22 × 52) ÷ 2) = 49/50;