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MGSE4.NF.5 Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.

Mrs. Lively and Ms. Jones took a survey of their teams. When they collected the data, Mrs. Lively’s class simplified their fractions down to tenths. Ms. Jones’s class used hundredths. On the next slides, you will find some information from both teams. Please help the two teachers figure out a total number for both of their teams.

Mrs. Lively’s class found that 7/10 of their team would choose potatoes over tomatoes. Mrs. Jones' s class found that 21/100 students would choose potatoes over tomatoes. If you combine both fractions, what fraction represents both classrooms?

Mr. Jones’s class found that 42/100 of the students prefer carrots over broccoli. Mrs. Lively’s class found that 1/10 of the students prefer carrots over broccoli. How many students prefer carrots over broccoli?

Ms. Jones’s class found that 13/100 of the students ride the bus home. Mrs. Lively's class found that 4/10 of the class ride the bus. How many people ride the bus?

Mrs. Lively has 9/10 of a puzzle. Mrs. Jones has 1/100 of the puzzle. How much of the puzzle would they have if they put the puzzles together?

Add the following fractions:
1/10 + 2/100 + 2/10 + 30/100 =

Worksheet

1. How do you feel about today's lesson?
2. How is today's lesson related to a previous lesson?
3. Explain how you would find the sum for 2/100 and 7/10.

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