Pre-AlgebraPre-Algebra

Rational NumbersRational Numbers

Lesson 4-6

Write two lists of fractions equivalent to .23

23

46

69

= = = … Numerators and denominators are positive.

= = = … Numerators and denominators are negative.23

–2–3

–4–6

Additional Examples

Pre-AlgebraPre-Algebra

Rational NumbersRational Numbers

Lesson 4-6

Graph each rational number on a number line.

a.

b. 0.5

c. 0

d.

34–

13

Additional Examples

Pre-AlgebraPre-Algebra

Rational NumbersRational Numbers

Lesson 4-6

A fast sports car can accelerate from a stop to 90 ft/s

in 5 seconds. What is its acceleration in feet per second per

second (ft/s2)? Use the formula a = , where a is

acceleration, f is final speed, i is initial speed, and t is time.

f – it

a = f – i

t Use the acceleration formula.

The car’s acceleration is 18 ft/s2.

90 – 05

Substitute.=

905 Subtract.=

18= Write in simplest form.

Additional Examples