first work out (5/2)³ by cubing both the numerator and denominator to give: 125/8
then work out (3/4)² by squaring both the numerator and denominator to give: 9/16
then divide 125/8 by 9/16 using the stay-change-flip method of division: the first term stays the same, the divide becomes multiply and the second fraction is flipped upside down. so: 125/8 x 16/9 =2000/72 then just divide 2000 by 72 to give: 27.78 to 2 d.p therefore the greatest whole number than 27.78 is 27.
