Question 1: Subtract the first rational number from the second in each of the following:
Answer :
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
Question 2: Evaluate each of the following:
Answer :
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
(ix)
(x)
(xi)
Question 3: The sum of the two numbers is 5/9.59. If one of the numbers is 1/3,13, find the other.
Answer :
It is given that the sum of two numbers is 5/9, where one of the numbers is 13.Let the other number be x.
Question 4: The sum of two numbers is 1/3.13. If one of the numbers is 12/3,123, find the other.
Answer : It is given that the sum of two numbers is1/3, where one of the numbers is −12/3.Let the other number be x.
Question 5: The sum of two numbers is 4/3.43. If one of the numbers is −5, find the other.
Answer :
It is given that the sum of two numbers is −4/3, where one of the numbers is −5.Let the other number be x.
Question 6: The sum of two rational numbers is −8. If one of the numbers is 15/7,157, find the other.
Answer :
It is given that the sum of two rational numbers is −8, where one of the numbers is −15/7.Let the other rational number be x.
Therefore,theotherrationalnumberis 41/7.
Question 7: What should be added to 7/8 so as to get 5/9?
Answer : Let x be added to 7/8 so as to get 5/9.
Question 8: What number should be added to 5/11511 so as to get 26/33 ?
Answer : Let x be added.
Question 9: What number should be added to 5/7 to get 2/3?
Answer : Let x be added.
Question 10: What number should be subtracted from 5/3 to get 5/6?
Answer : Let x be subtracted.
Question 11:What number should be subtracted from 3/7 to get 5/4?
Answer : Let, x be subtracted.
Question 12: What should be added to (2/3+3/5) to get −2/15?
Answer : Let x be added.
Question 13: What should be added to (1/2+1/3+1/5) to get 3?
Answer : Let x be added.
Question 14:What should be subtracted from (3/4−2/3) to get −1/6?
Answer : Let x be subtracted.
Question 15: Fill in the blanks:
Answer :
(i)
(ii)
(iii)
(iv)
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