Fractions
7/12 - 3/12
4/12
2/5 + 1/5 = ?
3/5
24 1/4 - 20.
4 1/4.
What is larger: 1/3 or 1/2?
1/2
Decompose 3/4.
Answers may vary (Must equal 3/4).
Draw an area model to find 7/10 - 3/10.
Drawings must equal 4/10.
2/10 + 6/10 + 1/10 = ?
9/10
1 4/6 + 2 5/6
4 3/6
Compare 6/8 to 3/4
They are equal!
Decompose 5/6 into three fractions.
Answers may vary (must equal 5/6).
Mr. Yetkin uses 4/6 of a sheet of plywood to board up a window. How much of the plywood is left?
2/6 plywood
Lindsay had 5/10 cup of flour in the mixing bowl. She added 2/10 cup of cocoa powder and 3/10 cup of sugar. What is the amount of dry ingredients in the mixing bowl?
1 cup
Julie has two extension cords with lengths of 22 2/4 feet and 26 3/4 feet. How long a cord can she make by attaching them together?
49 1/4 feet.
Draw a model to show that 2/3=4/6
Explain why you rewrite 4 1/4 to find
4 1/4 - 3/4.
Since 1/4 is less than 3/4, you must decompose 4 1/4 and rename it as 3 5/4.
Cole spent some time working on his history homework. Then, he spent 5/12 hours working on his Spanish homework. Cole spent 1 hour on homework. What fraction of an hour did Cole spend on history? Explain.
7/12 hour; because 12/12 - 5/12 = 7/12
3/10 of Ken's buttons are blue, 4/10 are green, and the rest are black. What fraction of Ken's buttons are black?
3/10
Jack made 5 1/4 dozen cookies for the bake sale, and his sister made 3 3/4 dozen cookies. How many more dozen cookies did Jack make than his sister?
1 2/4 dozen cookies.
Write two fractions that are equivalent to 8/10. Describe how you can show they are equivalent.
4/5 and 16/20; I can create a visual model to see if the same amount is shaded for each fraction.
Solve 5 1/3 minus 2/3.
4 2/3.
Using only odd numbers for numerators, write two different subtraction problems that have a difference of 1/2. Remember you can find equivalent fractions for 1/2.
Answers will vary (must have 1/2 as the answer to both problems).
How can you add 3/10 and 2/5? Solve and explain.
Sample; I can write 2/5 as the equivalent fraction 4/10. Then the two fractions will have like denominators, and they can be added to get 7/10.
A golf ball measures about 1 4/6 inches across the center. A tennis ball measures about 2 3/6 inches across the center. What is the difference between the distances across the centers of a tennis ball and a golf ball?
5/6 inches
Order 4/5, 1/4, 6/8, and 5/9 from least to greatest.
1/4, 5/9, 6/8, 4/5
Turn 16/5 into a mixed number.
3 1/5