Answers

2015-11-15T15:28:26+05:30
Standard form is when the fraction cant be divided further I.e. doesn't have any common factor.
192/-168 dividing by 4 gives 46/-42
further dividing by 2 we get, 23/-22
ans-23/-22
2 3 2
2015-11-15T18:57:03+05:30
Standard form exists when p/g become probably co prime and denominator is always +ve. so first of all fraction = -192/168
on divding by 2 and cancelling ....ans = -8/7
1 4 1