← Back to the activity

Year 7 Maths — Rational numbers

Place, compare, add and subtract numbers that can be written as one whole number over another.

Name: ________________________

  1. 1.1/2 - 3/4 = ? Write your answer as a fraction.

  2. 2.What is the reciprocal of -3/5? Write your answer as a fraction.

  3. 3.Tap where -5/4 sits.

    Mark the line with an X.

    -2.00-1.000.001.002.00

  4. 4.Every whole number is also a rational number. Why?

    • a) Because it never has a decimal point
    • b) Because it can be written as a fraction with 1 on the bottom
    • c) Because it is always bigger than a fraction
    • d) Because it is always positive

  5. 5.Tap where -1/2 sits.

    Mark the line with an X.

    -2.0-1.5-1.0-0.50.00.51.01.52.0

  6. 6.-2/5 × 10 = ?

  7. 7.Sort each rational number by which side of zero it sits on.

    Groups: Left of zero · Right of zero

    • 9/2
    • -7/8
    • -2.5
    • -1/10
    • 5/6
    • -4/3

  8. 8.Put these rational numbers in order, smallest first.

    • 0
    • -1/4
    • -3/2
    • 1
    • -1
    • 2/5

Answer key — Year 7 Maths — Rational numbers

  1. 1. -1/4
  2. 2. -5/3
  3. 3. -1.25
  4. 4. b) Because it can be written as a fraction with 1 on the bottom
  5. 5. -0.5
  6. 6. -4
  7. 7. -7/8 → Left of zero; 5/6 → Right of zero; -4/3 → Left of zero; 9/2 → Right of zero; -1/10 → Left of zero; -2.5 → Left of zero
  8. 8. 1. -3/2 2. -1 3. -1/4 4. 0 5. 2/5 6. 1