- A
- B
- C
- D
Step-by-Step Solution
Each part is . A is 9 parts left of 0, so A ; B is 4 parts right of 0, so B . Distance . (Doing gives , not a distance.)
Answer: A)
Points A and B are marked on the number line. Each unit is cut into equal parts. How far apart are A and B?
Class 7Rational NumbersRational Numbers
Key idea: Rationals on the number line
Every rational number has a place on the number line. Negative rationals on the left of 0, positive on the right. Between any two rationals, you can always find another rational (in fact, infinitely many) — this is called **density**.
Example: between 1/3 and 1/2, the average (1/3 + 1/2)/2 = 5/12 sits in the middle. Between 1/3 and 5/12 there's another rational, and so on, forever.
Example: between 1/3 and 1/2, the average (1/3 + 1/2)/2 = 5/12 sits in the middle. Between 1/3 and 5/12 there's another rational, and so on, forever.
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More Class 7 Rational Numbers practice
Arrange the rational numbers on the four cards in ascending order (smallest first).Find a rational number between 1/4 and 1/2.Order from smallest to largest: -2/3, 1/2, -3/4, 0. Which option lists them correctly?A rational number is a number that can be written in the form p/q where p and q are…Which of these numbers is NOT a rational number?