Question

There are ten peices of pizza . Brian ate one thenth of the pizza for dinner. He ate four fifths of the pizza for a bedtime snack. How much of the pizza is left

Answer 1

Total pizza eaten = 1/10 + 4/5
=1/10 + 8/10
=9/10
Pizza Left = 10 - 9/10
=100/10 - 9/10
=91/10

Answer 2

pieces of pizza= 10
Brian ate 1/10 for dinner
he ate 4/5 for bedtime snack

now 4/5 of pizza = 8/10 (multiplying both sides by 2)
so, in total Brain ate = 1/10 + 8/10
                                 = 9/10 of pizza was eaten by Brain...............ANS