Do Now 10/24/11 Take out your HW from Friday. –Text p. 77, #1-4 Copy HW in your planner. –Text p. 80, #14-38 evens, evens, 55 & 56 Be ready to copy POTW #7
Homework Text p. 77, #1-4 all 1) 500 cans 2) 76 Empire State Buildings 3) 36 black keys 4) 110 Hz
Objective SWBAT write fractions as decimals, write decimals as fractions, and determine whether a decimal is terminating or repeating.
Terminating decimal a decimal that comes to an end Section 2-6, “Equivalent Fractions and Decimals”
Repeating decimal a decimal that repeats with the same pattern forever 0.333… = … = … = You can also write a repeating decimal by placing a BAR over the repeating part.
F D raction ecimal To convert a fraction to a decimal, divide the numerator by the denominator.
Writing Fractions as Decimals Rewrite the fraction as a decimal. This means 3 divided by 4. A fraction is the quotient of two integers Remember Finished.0 20 F D
Writing Fractions as Percents Rewrite the fraction as a decimal. This means 5 divided by 12. A fraction is the quotient of two integers Remember Repeating decimal F D -
Writing Improper Fractions as Decimals F D Finished Rewrite the fraction as a decimal. This means 9 divided by 8. A fraction is the quotient of two integers Remember 4 40
= Writing Fractions as Decimals Writing Fractions as Decimals = When writing a fraction as a decimal, think of the fraction as a division expression. Then divide the numerator by the denominator. = -0.8 = = = … = 0.2 F D
D F raction ecimal To convert a decimal to a fraction, use the place value of the last digit to the right of the decimal point as the denominator of the fraction. Then simplify.
Writing Decimals as Fractions 0.71“seventy-onehundredths” 100 D F is in the “hundredths” place
Writing Decimals as Fractions 2.4 “two and four tenths” 10 D F 4 4 is in the “tenths” place 2 5 = Simplify or
Practice When writing a decimal as a fraction, say and write the fraction. Then simplify the fraction by dividing common factors
Decimals = Fractions “Part or a portion of the WHOLE” 4 tenths
Homework –Text p. 80, #14-38 evens, evens, 55 & 56