Question

13. $9\frac{4}{5}÷3\frac{3}{20}-1\frac{5}{6}$

Answer 1

Dear student,

Here is the solution of your asked query:
$$\begin{gathered} \mathrm{Q}.13.9\frac{4}{5}÷3\frac{3}{20}-1\frac{5}{6} \\ =\frac{49}{5}÷\frac{63}{20}-\frac{11}{6} \\ =\frac{49}{5}\times \frac{20}{63}-\frac{11}{6} \\ =\frac{\cancel{49}7}{\cancel{5}}\times \frac{\cancel{20}4}{\cancel{63}9}-\frac{11}{6} \\ =\frac{28}{9}-\frac{11}{6} \\ =\frac{28\times 2-11\times 3}{18}\{\mathrm{L}.\mathrm{C}.\mathrm{M}.\mathrm{of}6\mathrm{and}9\mathrm{is}18\} \\ =\frac{56-33}{18} \\ =\frac{23}{18} \\ =1\frac{5}{18} \end{gathered}$$
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