Presentation on theme: "Comparing Fractions and Decimals Grade 5"— Presentation transcript:
1Comparing Fractions and Decimals Grade 5 Created by April Ferrell
2Lesson Objectives SOL 5.2 The student will: a) recognize and name fractions in their equivalent decimal form and vice versa; andb) compare and order fractions and decimals in a given set from least to greatest and greatest to least.
3Unitedstreaming Video Clip There is a great video clip that can be used with this lesson. To use it:Log into UnitedstreamingDo a search for this Movie:Discovery Math: Number Theory (3-5) Discovery Channel SchoolThen choose this clip:Relations Among Numbers
4Fractions and Decimals Discovery Math: Number Theory (3-5) Discovery Channel School
5Let’s Review Comparing fractions Converting fractions to decimals Comparing decimalsConverting decimals to fractions
6Comparing FractionsIn order to compare fractions, the denominators for each fraction need to be the same.Find the Least Common MultipleMake equivalent fractions
8Now order these fractions from least to greatest. Comparing FractionsNow order these fractions from least to greatest.===7 203 4
9Comparing FractionsOrder these fractions6 101 26 101 2
10Comparing DecimalsWhen comparing decimals, you have to look at the whole numbers.If the whole numbers are the same, then look at the decimal in the tenths place.Keep looking at the digits until you can identify which is the greatest or least.
11Practice Time! Order from least to greatest Comparing DecimalsPractice Time! Order from least to greatestAnswersProblems1.134, 1.341, 1.1031.103, 1.134, 1.34114.072, , 14.0714.07, ,3.963, 3.63, 3.933.63, 3.93, 3.963
12Converting Fractions to Decimals Think about how you say the fraction..66 10How many TENTHS are there? The 6 goes in the TENTHS place.=8 100.08How many HUNDREDTHS are there? The 8 goes in the HUNDREDTHS place.=
13Converting Fractions to Decimals If the denominator is not a tenth or hundredth, you will need to make an equivalent fraction using a 10 or 100 as the denominator.==.8
14Converting Fractions to Decimals Let’s try a few!==.75==.20.40==
15Converting Decimals to Fractions Converting decimals to fractions is the opposite of converting fractions to decimals.Once again, read the fraction.What do you hear?Tenths or hundredths?
16Converting Decimals to Fractions Think about how you say the decimal..6Read the decimal. The 6 is in the TENTHS place, so the denominator is 10.6 10=.088 100What place is the 8 in? The HUNDREDTHS place. The denominator is 100.=
17Converting Decimals to fractions Let’s try a few!.60=or.16=.40=or
18Comparing Fractions and Decimals In order to compare fractions and decimals, you have to use all of the skills you have learned and reviewed in this session. You can not compare fractions and decimals. You have to convert them all to either fractions or all to decimals.
19Comparing Fractions and Decimals Compare and order these fractions and decimals..601 2.75.4