Question 75

What is the value of $$\left(\frac{5}{2}  of  5 \div 4 - 2  of  \frac{1}{7} \div \frac{1}{7}\right)$$?

Solution

$$\left(\frac{5}{2}  of  5 \div 4 - 2  of  \frac{1}{7} \div \frac{1}{7}\right) = \dfrac{5}{2} \times \dfrac{5}{4} - 2\times \dfrac{1}{7} \times 7 = \dfrac{25}{8} - 2 = \dfrac{25-16}{8} = \dfrac{9}{8}$$


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