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Evaluate : 6/7-2+(-7)/9+(19)/(21)...

Evaluate : `6/7-2+(-7)/9+(19)/(21)`

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RD SHARMA ENGLISH-RATIONAL NUMBERS-All Questions
  1. Evaluate : (-12)/5+(-7)/(20)+3/(14)+1/7+(-1)/(10)

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  2. Find : 3/4+\ ((-3)/5)+((-2)/3)+5/8+\ ((-4)/(15))

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  3. Evaluate : 6/7-2+(-7)/9+(19)/(21)

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  4. Simplify : (i)(-2)/3+5/9-(-7)/6 (ii) 5/(12)+(-5)/(18)-7/(24)

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  5. Simplify each of the following and write as a rational number of the...

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  6. Simplify each of the following and write as a rational number of the...

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  7. Simplify each of the following and write as a rational number of the...

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  8. Express each of the following as a rational number of the form p/q ...

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  9. Express each of the following as a rational number of the form p/q ...

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  10. Express each of the following as a rational number of the form p/q :...

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  11. Simplify: (-3)/2+5/4-7/4 (ii) 5/3-7/6+(-2)/3

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  12. Simplify: 5/4-7/6-(-2)/3 (ii) (-2)/5-(-3)/(10)-(-4)/7

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  13. Simplify: 5/6+(-2)/5-(-2)/(15) (ii) 3/8-(-2)/9+(-5)/(36)

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  14. Multiply : (i)3/4\ by\ 5/7\ (ii) \ 3/7\ by\ ((-4)/5)\ (iii)\ ((-...

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

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  16. Simplify : ((-16)/5\xx(20)/8)-((15)/5\ xx\(-35)/3)

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  17. Simplify : ((-3)/2xx4/5)+(9/5xx(-10)/3)-(1/2xx3/4)

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  18. Simplify : ((-7)/(18)xx(15)/(-7))-(1xx1/4)+\ (1/2xx1/4)

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

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

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