question b,c,a

2/3 ÷ 1/6

Multiply 2/3 by 2 over 2 to get a common denominator

4/6 ÷ 1/6

Use the reciprocole

4/6 x 6/1

Multiply across

24/6

Simplify

4

There's the first problem, and hopefully it will help you in figuring out the second :) If you need more help just ask

Saseflower.....we don't need to worry about common denominators when we multiply or divide fractions.....that's only necessary when we add/subtract....... .....it doesn't make your answer incorrect....it just leads [ sometimes] to extra work...!!!!

So we have

[2/3] / [1/6] * [2/3]/ [6/8]  =

[2/3 x 6/1] * [ 2/3 * 8/6]  =

[12/3] * [16/18] =

4 * [16/18]  =

4/1  *16/18 =

64/18 =

32/9

Oh I'm sorry CPhill I wasn't thinking! I'll be more careful next time