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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[