Can someone me ? ? t times 3/4 for t = 8/9

Look for a common denominator and the multiply the divisor by the number to get the common denominator.A way to get this is to multiply the two denominators (the bottom number) together so it would be 4×9 which is 36 so the common denominator would be 36 so multiply 3 by 9 and 8 by 4 and then multiply. Example:
4×9=36
3/4 × 9 = 27/366
8/9×4=32/36
32/36×27/3662666=your answer

Then why is the question on here if you know the answer