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Using commutativity and associativity of addition of rational numbers, express each of the following as a rational number: `2/5+7/3+(-4)/5+(-1)/3` (ii) `3/7+(-4)/9+(-11)/7+7/9`

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RD SHARMA ENGLISH-RATIONAL NUMBERS-All Questions
  1. Write the negative (additive inverse) of each of the following : (...

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  2. Write the negative (additive inverse) of each of the following : (...

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  3. Using commutativity and associativity of addition of rational number...

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  4. Using commutativity and associativity of addition of rational numbe...

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  5. Re-arrange suitably and find the sum in each of the following: (11...

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  6. Re-arrange suitably and find the sum in each of the following: 3/5...

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  7. Re-arrange suitably and find the sum in each of the following: 2/3...

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  8. Subtract 3/4 from 5/6dot

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  9. Subtract (-3)/8 from (-5)/7

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  10. Subtract (-3)/5 from 9/(10)dot

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  11. The sum of two rational numbers is (-3)/5 . If one of the number is (-...

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  12. What number should be added to (-5)/8 so as to get 5/9\ ?

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  13. What should be subtracted from (-3)/4 so as to get 5/6?

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  14. Subtract the first rational number from the second in each of the f...

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  15. Subtract the first rational number from the second in each of the f...

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  16. Subtract the first rational number from the second in each of the f...

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  17. Subtract the first rational number from the second in each of the f...

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  18. Evaluate each of the following: 2/3-3/5 (ii) 4/7-2/(-3) (iii)...

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  19. Evaluate each of the following: -2-5/9 (ii) (-3)/(-8)-(-2)/7 ...

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  20. Evaluate each of the following: (i)(-5)/(14)+(-2)/7 (ii) (13)/(15)...

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