Question

sana had 4/5 of a pie. she ate 2/5 of it and her sister ate 1/10 of it. What fraction of the pie was eaten? What fraction of the pie was left?

Answer 1

Answer:

54/125 fraction of pie is left.

Step-by-step explanation:

Sana has 4/5 of the pie.

She ate 2/5 of the pie.

Therefore amount of pie left=(4/5) ×(1-(2/5)) =(4/5) ×(3/5) =12/25.

Again Sana's sister ate (1/10) of the remaining.

Therefore fraction of pie left is =(12/24) -(1-(1/10)) =(12/25) ×(9/10) =108/250=54/125.