Question

A birthday cake was cut into equal pieces, and five pieces were eaten. The fraction 2/7 shows how many pieces are left. According to the fraction, how many pieces were not eaten

A.2
B.7
C.12
D.5

Answer 1

Fraction eaten  = 1 - 2/7 = 5/7

5/7  is equivalent to  5 piecse
so 2/7 is equivalent to 2 pieces

So pieces not eaten = 2