Question

rolls are being prepared to go to the grocery store. Divide 72 rolls into 2 groups so the ratio is 3 to 5

Answer 1

`\bf \cfrac{\stackrel{first}{group}}{\stackrel{second}{group}}\qquad 3:5\qquad \cfrac{3}{5}\implies \cfrac{3\cdot (72)/(3+5)}{5\cdot (72)/(3+5)}\implies \cfrac{3\cdot 9}{5\cdot 9}\implies \cfrac{27}{45}`