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  • Find seven by nine minus two by 5

Find (i)\frac{7}{9}-\frac{2}{5} \ \ \ \ \ (ii) 2 \frac{1}{5}-\frac{(-1)}{3}

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(i)\frac{7}{9}-\frac{2}{5} =\frac{7 \times 5-9 \times2}{45}=\frac{17}{45} \\ (ii) 2 \frac{1}{5}-\frac{(-1)}{3}=\frac{11}{5}+\frac{1}{3}=\frac{11 \times 3+ 1 \times 5}{15}=\frac{38}{15}

Posted by

Ravindra Pindel

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1:-  0.5

2:-  2.5

Posted by

Ajeet Singh

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1). 7/9-2/5=7*5-2*9/45

=35-18/45

=17/45

2).11/5-(-1)/3

=11/5+1/3

=11*3+1*5/15

33+5/15

=38/15

 

Posted by

Yuvraj singh rathore

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