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3. Find:

    (i)\; \frac{7}{3}\div 2              (ii)\; \frac{4}{9}\div 5                 (iii)\; \frac{6}{13}\div 7               (iv)\; 4\frac{1}{3}\div 3

    (v)\; 3\frac{1}{2}\div 4           (vi)\; 4\frac{3}{7}\div 7

 

           

Answers (1)

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As we know, The division of a number by a / b is equivalent to multiplication of that number with b / a which is also called the reciprocal of a / b. So,

(i)\; \frac{7}{3}\div 2

\Rightarrow \; \frac{7}{3}\div 2=\frac{7}{3}\times\frac{1}{2}=\frac{7}{6}=1\frac{1}{6}

(ii)\; \frac{4}{9}\div 5

\Rightarrow \; \frac{4}{9}\div 5=\frac{4}{9}\times\frac{1}{5}=\frac{4}{45}

(iii)\; \frac{6}{13}\div 7

\Rightarrow \; \frac{6}{13}\div 7=\frac{6}{13}\times\frac{1}{7}=\frac{6}{91}

(iv)\; 4\frac{1}{3}\div 3

\Rightarrow \; 4\frac{1}{3}\div 3=\frac{13}{3}\div3=\frac{13}{3}\times\frac{1}{3}=\frac{13}{9}=1\frac{4}{9}

(v)\; 3\frac{1}{2}\div 4

\Rightarrow \; 3\frac{1}{2}\div 4=\frac{7}{2}\div4=\frac{7}{2}\times\frac{1}{4}=\frac{7}{8}

(vi)\; 4\frac{3}{7}\div 7

\Rightarrow \; 4\frac{3}{7}\div 7=\frac{31}{7}\div7=\frac{31}{7}\times\frac{1}{7}=\frac{31}{49}

 

Posted by

Pankaj Sanodiya

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