Respuesta :

Answer:

He is right

Step-by-step explanation:

10/25 times 4/4 = 40/100

10 x 4 = 40

25 x 4 = 100

Answer:

Step-by-step explanation:

10/25  

simplest form is2/5

For 40/100

=8/20

=2/5 is the simplest form  

so he is right