Im stuck on multiplying fractions and drawing them in a box

Ok so multiply fractions. So let's say 1/2 and 2/3 You can first cross multiply so 2 goes into 2 1 time, so know you have 1 as the numerator and 3 as the denominator. so 1/3 you can also do this the standard way so 1/2 times 2/3 you just multiply across so 1*2 over 2*3 which is 2/6 which is 1/3