Respuesta :

Answer:

25/14

Step-by-step explanation:

using a=a/1 convert the expression unto a fraction.

5/1 × 1/7 × 1/2 × 5/1

5×1×1×5 over

1×7×2×1

use the rules of multiplication to calculate the expression.

25/1×7×2×1

wich is 25/14