a pizza was sliced 10 pieces. bill ate 2/10 of the pizza how much of the pizza was left?

10/10 - 2/10 = ?

It would be 4/5 of the pizza left.

How do you find that answer??

To determine how much of the pizza was left after Bill ate 2/10 of it, we need to subtract 2/10 from the whole pizza.

Step 1: Calculate 2/10 of the pizza
To do this, divide the total number of pieces (10) by the denominator (10) and multiply the result by the numerator (2):
2/10 x 10 = 2

So, Bill ate 2 pieces of the pizza.

Step 2: Subtract the number of pieces Bill ate from the total number of pieces
To find out how many pieces are left, subtract the number of pieces Bill ate (2) from the total number of pieces (10):
10 - 2 = 8

Thus, 8 pieces of the pizza are remaining.