Question

a/b =10a what number should B be?

Answer 1

a/b =10a /1

1/b = 10/1

Answer 2

why B became 1?

Answer 3

a/b =10a

Try to get similar terms on one side (a one side, b one side)

Right?

If you multiply both sides by b first you get

a = 10a*b (* is multiplification)

You got rid of fractions first because then you'd know you could see what to divide by to get only similar terms to one side (a one side, b the other side)

So now you see that you can divide by a to get:

1 on left side (a/a)

10b on one side ((10a*b) /a = 10*b = 10b)

so 1 on left, 10b on right

1 = 10b

Now you just divide both sides by 10 to find what is the value of 1b, not whwat is the value of 10b so

1/10 = b