<span> Change the </span>division<span> sign to multiplication and invert the </span>fraction<span> to the right of the sign. Multiply the numerators and the denominators, but leave them in factored form. Factor the numerator and denominator and look for the </span>fraction<span> in the mix that has a value of 1.</span>
KCF keep change flip if its 4/5 / 2/6 you keep the first fraction which is 4/5 then you change the divide sign to multiply and then you flip the 2/6 so now it is 2/6 so now your problem is 4/5 x 6/2