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Multiply: (i)(-8)/(25) by (-5)/(16) ...

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

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RD SHARMA ENGLISH-OPERATIONS ON RATIONAL NUMBERS-All Questions
  1. Multiply: (i)(-2)/9b y5/(11) (ii) (-3)/(17)b y(-5)/(-4)

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

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

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

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

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

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  7. Simplify: (i) ((13)/9xx(-15)/2)+(7/3xx8/5)+(3/5xx1/2) (ii) (3/(11)x...

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  8. Write the reciprocal of each of the following rational numbers: (i)...

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  9. Write the reciprocal of each of the following rational numbers: (i)...

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

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

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

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

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

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

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

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

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

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  19. Find the value and express as a rational number in standard form: (...

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

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