Warm Up (8/29)

• Please pick up a warm-up sheet from the desk in the front and hole punch it and work question # 3

(remember volume of a cylinder is πr² x height)

• Have out your Homework #1 from Tues on your desk

7.1 B Converting Rational Numbers

How to convert between different forms of rational numbers• Fraction to a Decimal –

To convert a fraction to a decimal divide the numerator (top number) by the denominator (bottom number).

EX: 4/5…

5 4The fraction 4/5 = .80

Place Value…

____ ___ ___ . ___ ___ ____

Converting Decimal to Fraction

• Find the place value of the number farthest to the right of the decimal and set that as denominator.

EX: .845 = 845

1000

.72 = 72

100

Converting Mixed Decimal to a

Mixed Fraction23.08

1) Make everything before the decimal a whole number

ex: 23

2) Find the place value of the number farthest to the right of the decimal and set that as denominator

ex: 08

100

Answer = 23 2/25

Converting Mixed Fraction to a

Mixed Decimal•14 9/100

The whole number will be used on the left side of the decimal

14.

The denominator will tell you what place value to put the numerator.

.09

Answer = 14.09