Answer:
The correct option is B.
Step-by-step explanation:
If a number n is multiply by a number than lies between 0 to 1, then the product is less than the initial number.
\(k\times n if 0<k<1
If a number n is multiply by a number that is greater than 1, then the product is greater than the initial number.
\(k\times n>n\) if k>1
It is given that Fiona multiplies a number by 2/3.The product is greater than 2/3. It means the number which is multiplies by Fiona is must be greater than 1.
\(\frac{10}{12}<1\)
\(\frac{6}{5}<1\)
\(\frac{3}{3}=1\)
\(\frac{2}{9}<1\)
That number is \(\frac{6}{5}\). Therefore the correct option is B.
