Watch Video on Fraction to Decimal - Math Help
Thursday, June 18th, 2009
Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/fractiontodecimal.php Students learn to convert fractions to decimals. For example, to convert the fraction 7/10 to a decimal, first read the fraction as “7 tenths”. Next, since the tenths place is one place to the right of the decimal point, 7 tenths can be written as the decimal 0.7. To convert 11/20 to a decimal, first find a fraction that is equivalent to 11/20 that has a denominator of 100, so multiply both the numerator and denominator by 5, to get 55/100. Next, read the fraction as “55 hundredths”, which can be written as 0.55.
Duration : 0:1:14
Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/convertdecimaltofraction.php Students use the place value chart to convert decimals to fractions or mixed numbers. The given decimals are taken to the tenths, hundredths, thousandths, or ten-thousandths places, and the resulting fractions or mixed numbers must sometimes be reduced to lowest terms. For example, the decimal 0.4 means 4 tenths, or 4/10, which reduces to 2/5.
Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/percenttodecimal.php Students learn to write percents as decimals and decimals as percents. For example, to write 82% as a decimal, think of 82% as 82/100, and remember that dividing by 100 moves the decimal point two places to the left, to get 0.82. So 82% can be written as the decimal 0.82. Since a percent can be written as a decimal by moving the decimal point two places to the left, a decimal can be written as a percent by moving the decimal point two places to the right. For example, to write 0.4 as a percent, move the decimal point two places to the right to get 40. So 0.4 can be written as 40%.
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