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. What should be added to frac(-7)(8) to...

. What should be added to `frac(-7)(8)` to get `frac(4)(9)` ?

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RS AGGARWAL-RATIONAL NUMBERS-SOLVED EXAMPLES
  1. EXAMPLE 2. Subtract (i) frac(3)(4)("from")frac(2)(3) (ii) frac(-5)(7)(...

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  2. The sum of two rational numbers is -5. If of the numbers is frac(-13)(...

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  3. . What should be added to frac(-7)(8) to get frac(4)(9) ?

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  4. What should be subtracted from frac(-2)(3) to get frac(5)(6) ?

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  5. . Find the product: (i) frac(2)(3) xx frac(5)(7) (ii) frac(3)(4) xx ...

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  6. . Simplify: (i) frac(-36)(7) xx frac(-14)(9) (ii) frac(-8)(13) xx frac...

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  7. Simplify: (i) (7)(18) xx(-4) (ii) (-36) xx ((-5)(9))

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  8. Simplify: (i) frac(-5)(9) xx frac(63)(-100) (ii) frac(-11)(9) xx frac(...

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  9. S car is moving at an average speed of 56(4/5) km/h. How much distance...

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  10. . Write down the reciprocal of: (i) frac(13)(7) (ii) frac(-8)(9) (ii...

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  11. EXAMPLE 1. Simplify: (i) frac(7)(15) div frac(2)(3) (ii) frac(-8)(35...

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  12. Fill in the blanks: (27)(16)div(...)=(-15)(8).

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  13. The product of two rational numbers is frac(-8)(9). If one of the numb...

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  14. By What number should (-33)(8) be divided to get (-11)(2) ?

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  15. The cost of 15 pencils is Rs37frac(1)(2). Find the cost of each pencil...

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  16. S car is moving at an average speed of 56frac(4)(5) km/h. How much dis...

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  17. Write down the reciprocal of: (i) frac(13)(7) (ii) frac(-8)(9) (iii)...

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  18. EXAMPLE 1. Simplify: (i) frac(7)(15) div frac(2)(3) (ii) frac(-8)(35...

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  19. Fill in the blanks: frac(27)(16)div(...)=frac(-15)(8).

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  20. The product of two rational numbers is frac(-8)(9). If one of the numb...

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