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

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

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

Multiply :(3)/(4)by(5)/(7) (ii) (3)/(7)by((-4)/(5))((-5)/(9)) by 4( iv) ((-36)/(7))by(-(28)/(9))

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

Multiply : 5/9xx4/9

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

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: 3/4\ by 5/7 (ii) 3/7 by ((-4)/5)

Multiply : (i) (3)/(4) by (5)/(7) (ii) (9)/(8) by (32)/(2) (iii)(7)/(6) by 24 (iv) (-2)/(3) by (6)/(7) (v) (-12)/(5) by (10)/(-3) (vi) (25)/(-9) by (3)/(-10) (vii) (-7)/(10) by (-40)/(21) (viii) (-36)/(5) by (20)/(-3) (ix) (-13)/(15) by (-25)/(26)

RD SHARMA-OPERATIONS ON RATIONAL NUMBERS-All Questions
  1. Fill in the blanks: (-7)/9+=3 (ii) +(15)/(23)=4

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  2. Multiply: 3/4\ by 5/7 (ii) 3/7 by ((-4)/5)

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

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  4. Simplify: (-8)/7xx(14)/5 (ii) (13)/6xx(-18)/(91)

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  5. Simplify: (-5)/9xx(72)/(-125) (ii) (-22)/9xx(-51)/(-88)

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  6. Simplify: ((-16)/5xx(20)/8)-((15)/5xx(-35)/5) ((-3)/2xx4/5)+(9/5xx(...

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  7. Multiply: 7/(11)b y5/4 (ii) 5/7b y(-3)/4

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

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

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

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

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

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

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

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

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

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

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

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

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

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