CBSE  /  Class 7  /  Maths  /  Rational Numbers

  • 1. 
    if \(\frac { 4 }{ 5 } \) = \(\frac { 12 }{ ? } \), then ? =

  • 5
  • 10
  • 15
  • 25

  • 2. 
    if \(\frac { -4 }{ 7 } \) = \(\frac { ? }{ 14 } \), then ? =

  • -4
  • -8
  • 4
  • 8

  • 3. 
    if \(\frac { -7 }{ 11 } \) = \(\frac { 14 }{ ? } \), then ? =

  • 11
  • -11
  • 22
  • -22

  • 4. 
    if \(\frac { -3 }{ -5 } \) = \(\frac { 9 }{ ? } \), then ? =

  • 15
  • -15
  • 9
  • -9

  • 5. 
    if \(\frac { -8 }{ -9 } \) = \(\frac { -16 }{ ? } \), then ? =

  • 18
  • -18
  • 9
  • -9

  • 6. 
    Which of the following is a negative rational number?

  • \(\frac { 1 }{ 2 } \)
  • \(\frac { 3 }{ 4 } \)
  • \(\frac { -4 }{ -5 } \)
  • \(\frac { 2 }{ -3 } \)

  • 7. 
    Which of the following is a positive rational number?

  • \(\frac { -1 }{ 2 } \)
  • \(\frac { 2 }{ -3 } \)
  • \(\frac { -3 }{ -4 } \)
  • -5

  • 8. 
    The rational number \(\frac { 12 }{ 40 } \) in standard 40 form is

  • \(\frac { 3 }{ 10 } \)
  • \(\frac { 6 }{ 10 } \)
  • \(\frac { 3 }{ 20 } \)
  • \(\frac { 6 }{ 20 } \)

  • 9. 
    The rational number \(\frac { -21 }{ 28 } \) in standard form is

  • \(\frac { -3 }{ 4 } \)
  • \(\frac { 3 }{ 4 } \)
  • \(\frac { 3 }{ 7 } \)
  • \(\frac { -3 }{ 7 } \)

  • 10. 
    The rational number \(\frac { -6 }{ -25 } \) in standard form is

  • \(\frac { 6 }{ 25 } \)
  • \(\frac { -6 }{ 25 } \)
  • \(\frac { 6 }{ -25 } \)
  • \(\frac { -6 }{ 25 } \)
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