Step-by-step explanation:
[tex]2 \frac{1}{2} y = \frac{5}{8} [/tex]
Convert Mixed number to improper fraction.
[tex]2 \frac{1}{2} = \frac{5}{2} [/tex]
Equate
[tex] \frac{5}{2} y = \frac{5}{8} [/tex]
Cross Multiply
[tex]5y \times 8 = 2 \times 5 \\ 40y = 10[/tex]
Divide both sides of the equation by 40
[tex] \frac{40y}{40} = \frac{10}{40} [/tex]
Simplify
[tex]y = \frac{1}{4} [/tex]