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. Write down the reciprocal of: (i) fr...

. Write down the reciprocal of:
(i) `frac(13)(7)` (ii) `frac(-8)(9)` (iii) -6

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Write the reciprocal of: ( i ) (frac(2)(3))^(4) ( ii ) (frac(-3)(5))^(61) ( iii ) 2^(5) ( iv ) (-5)^(6)

Write down the reciprocal of (i) 3/7 (ii) 1/5 (iii)6 (iv) 3 5/8

Write down the reciprocal of: (i) 5/8 (ii)7 (iii) 1/12 (iv) 12 3/5

EXAMPLE 1. Find the additive inverse of: (i) frac(5)(9) (ii) frac(-15)(7) (iii) frac(8)(-13) (iv) frac(-12)(-13)

Which of the following are rational numbers? (i) frac(5)(-8) (ii) frac(-6)(11) (iii) frac(7)(15) (iv) frac(-8)(-12) (v) 6 (vi) -3 (vii) 0 (viii) frac(0)(1) (ix) frac(1)(0) (x) frac(0)(0)

What is the reciprocal of the sum of the reciprocals of frac(3) (5) and frac(7)(3) ? (A) frac(4)(5) (B) frac(36)(35) (C ) frac(21)(44) (D) frac(1)(4)

Which of the following are positive rational numbers? (i) frac(3)(-5) (ii) frac(-11)(15) (iii) frac(-5)(-8) (iv) frac(37)(53) (v) frac(0)(3) (vi) 8

Write down the numerator and the denominator of each the of the following rational numbers: (i) frac (8)(19) (ii) frac(5)(-8) (iii) frac(-13)(15) (iv) frac(-8)(-11) (v) 9

Find four rational number equivalent to each of the following. (i) frac(6)(11) (ii) frac(-3)(8) (iii) frac(7)(-15) (iv) 8 (v) 1 (vi) -1

Write each of the following as a rational number with positive denominator. (i) frac(12)(-17) (ii) frac(1)(-2) (iii) frac(-8)(-19) (iv) frac(11)(-6)

RS AGGARWAL-RATIONAL NUMBERS-SOLVED EXAMPLES
  1. . What should be added to frac(-7)(8) to get frac(4)(9) ?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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