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Ratio, Proportion & Percent

Mathematics, Grade 5

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Identity (zero) Property Commutative Property of Addition 10 100 1 10 = = = = Ratio Fraction form Word form Using a colon boys to girls girls to the total number of students boys to the total number of students 5:7 5 to 7 7 to 12 5 to 12 7:12 5:12 10% 25 100 1 4 5 7 7 12 5 12 = = = = 25% 50 100 1 2 = = = = 50% 75 100 3 4 = = = = 75% 100 100 10 10 = = = = 100% 80 100 20 20 4 5 = = = xx = 1 5 1 5 1 5 1 5 Step 5 7 1 Equal Ratios: Count the number of boys: Count the number of girls: Write a ratio to compare. Ratios can be written in three different ways. Step 2 4 1 4 1 = = 12 3 12 3 8 2 8 2 4 1 4 1 4 4 4 4 11 ÷ = = 12 3 12 3 12 12 4 4 3 3 ÷ = = 8 2 8 2 8 8 4 4 2 2 ÷ = = Proportion Ratio Percent What percent of this grid is shaded? Lemonade Making Directions Percents show up everywhere in our daily lives – sales tax on purchases, tips at restaurants, discounts at stores, among others. Percent means “per hundred”. It is a ratio that compares a number to 100. For example, 36 percent is a ratio of 36 to 100 or 36 out of 100. A proportion is an equation showing that two ratios are equal. Ratios that are equal to each other are called equivalent fractions. A ratio is a comparison of two numbers. These numbers are called the terms of the ratio. Write a ratio to compare the number of girls and boys in your classroom. = boy = girl = water = lemon juice • Mix 4 parts water with 1 part lemon juice. • change to an equivalent fraction with a denominator of 100. 80% 4 5 © Copyright NewPath Learning. All Rights Reserved. 93-4505 www.newpathlearning.com Ratio, Proportion & Percents

1 10 = = = = Ratio Fraction form Word form Using a colon boys to girls girls to the total number of students boys to the total number of students 1 4 = = = = 1 2 = = = = 3 4 = = = = 100 100 10 10 = = = = 4 5 = = = xx = 1 5 1 5 1 5 1 5 Step 1 Equal Ratios: Count the number of boys: Count the number of girls: Write a ratio to compare. Ratios can be written in three different ways. Step 2 4 1 = = ÷ = = 5 to 7 : : : 5 to 7 5 to 7 ÷ = = ÷ = = Key Vocabulary Terms • denominator • equal ratio • equivalent fraction • fraction • percent • proportion • ratio Proportion Ratio Percent What percent of this grid is shaded? Lemonade Making Directions Percents show up everywhere in our daily lives – sales tax on purchases, tips at restaurants, discounts at stores, among others. Percent means “per hundred”. It is a ratio that compares a number to 100. For example, 36 percent is a ratio of 36 to 100 or 36 out of 100. A is an equation showing that two ratios are equal. Ratios that are equal to each other are called . A ratio is a comparison of two numbers. These numbers are called the terms of the ratio. Write a ratio to compare the number of girls and boys in your classroom. = boy = girl = water = lemon juice • Mix 4 parts water with 1 part lemon juice. • change to an equivalent fraction with a denominator of 100. % 4 5 % % % % % © Copyright NewPath Learning. All Rights Reserved. 93-4505 www.newpathlearning.com Ratio, Proportion & Percents \|xiBAHBDy01662lz[

Ratio, Proportion & Percent

Mathematics, Grade 5

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