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Multiply: (-5)/(17)b y(51)/(-60) (ii) ...

Multiply: `(-5)/(17)b y(51)/(-60)` (ii) `(-6)/(11)b y(-55)/(36)`

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Multiply: (-5)/(17)by(51)/(-60)(ii)(-6)/(11)by(-55)/(36)

Multiply: (9)/(-7)by(36)/(-11) (ii) (-11)/(13)by(-21)/(7)

Multiply: (-8)/(25)by(-5)/(16) (ii) (6)/(7)by(-49)/(36)

Multiply: (-2)/(9)by(5)/(11) (ii) (-3)/(17)by(-5)/(-4)

Multiply: (7)/(11)by(5)/(4) (ii) (5)/(7)by(-3)/(4)

Multiply: (-8)/(25) by (-5)/(16) (ii) 6/7 by (-49)/(36)

Multiply: (7x+y)by(x+5y)( (ii) (a-1)by(0.1a^(2)+3)

Multiply: ((-5)/9) by 4 (ii) ((-36)/7) by (-(28)/9)

Three randomly chosen nonnegative integers x,y and z are found to satisfy the equation x+y+z=10. Then the probability that z is even,is: (5)/(12) (b) (1)/(2)( c) (6)/(11) (d) (36)/(55)

Multiply: -6a^(2)bc,2a^(2)b and -(1)/(4) (ii) (4)/(9)a^(5)b^(2),10a^(3)b and 6

RD SHARMA-OPERATIONS ON RATIONAL NUMBERS-All Questions
  1. Multiply: 7/(11)b y5/4 (ii) 5/7b y(-3)/4

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  2. Multiply: (-2)/9b y5/(11) (ii) (-3)/(17)b y(-5)/(-4)

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  3. Multiply: (-5)/(17)b y(51)/(-60) (ii) (-6)/(11)b y(-55)/(36)

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  4. Multiply: (-8)/(25) by (-5)/(16) (ii) 6/7 by (-49)/(36)

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  5. Simplify each of the following and express the result as a rational...

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  6. Simplify each of the following and express the result as a rational...

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  7. Simplify: (-5xx2/(15))-(-6xx2/9) (ii) ((-9)/4xx5/3)+((13)/2xx5/6)

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  8. Simplify: ((13)/9xx(-15)/2)+(7/3xx8/5)+(3/5xx1/2) (3/(11)xx5/6)-(9/...

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  9. Write the reciprocal of each of the following rational numbers: 7 ...

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  10. Write the reciprocal of each of the following rational numbers: 2/5...

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  11. Find the reciprocal of: (-3)/8xx(-7)/(13)

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  12. Divide: 3/5\ b y4/(25) (ii) 8/9\ b y4/3

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  13. Divide: (-16)/(21)\ b y4/3 (ii) (-8)/(13)\ b y3/(-26)

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  14. The product of two rational numbers is (-28)/(81)dot If one of the ...

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  15. By what number should we multiply 3/(-14), so that the product may ...

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  16. Divide: 1 by 1/2 (ii) 5\ b y\ (-5)/7

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  17. Divide: (-3)/4\ b y9/(-16) (ii) (-7)/8\ b y\ (-21)/(16)

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  18. Divide: 7/(-4)\ b y(63)/(64) (ii) 0\ b y\ (-7)/5

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  19. Divide: (-3)/4\ b y-6 (ii) 2/3\ b y\ (-7)/(12)

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  20. Find the value and express as a rational number in standard form: 2...

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