Respuesta :

Answer:

40

Step-by-step explanation:

15/40 divided by 5= (15 divided by 5)/(40 divided by 5)= 3/8

Answer:

a = 40

Step-by-step explanation:

Cross multiply, then divide:

  1. 15 × 8 = 120
  2. 120 ÷ 3 = 40

I hope this helps!