Adding/Subtracting Fractions
1/4 + 2/4 =
3/4
1 2/4 + 2 1/4 =
3 3/4
3 x 1/2 =
3/2 or 1 1/2
True or False: 1/2=4/8
Prove it with a model or an equation.
True
1x4=4
2x4=8
Sally walked 3/5 mile in her neighborhood each day for 3 days. How many miles did Sally walk in all 3 days?
3 x 3/5= 9/5 or 1 4/5 miles
2/5 + 3/5 =
5/5 or 1
5 1/8 + 3 4/8 =
8 5/8
5 x 4/5 =
20/5 or 4
Compare using <, >, and =. Prove it with an explanation, model, or method.
5/6 ___ 4/9
5/6 > 4/9
A dime is 1/3 inch wide. How wide is a group of 7 dimes side by side?
7x1/3=7/3 or 2 1/3 inches
1/2 + 1/2 + 1/2 =
3/2 or 1 1/2
6 2/8 - 3 1/8 =
3 1/8
3 x 7/6 =
21/6 or 3 3/6
Show a model that proves the following statement is true.
1/3=2/6
Drawn model that proves the equation is true
Rewrite 3× 5/8 as the product of a unit fraction and a whole number. Solve.
3 x 5/8= 15/8
15 x 1/8 = 15/8 or 1 7/8
5/6 - 2/6=
3/6
10 2/5- 4 3/5 =
29/5 or 5 4/5
5 x 2/8 =
10/8 or 1 2/8
Generate an equivalent fraction: 3/8
6/16, 9/24, 12/32, 15/40, etc
Rewrite 5 × 2/6 as the product of a unit fraction and a whole number. Solve.
5 x 2/6 = 10/6
10 x 1/6 = 10/6
1- 3/5 =
2/5
3 2/7 - 1 3/7=
13/7 or 7 6/7
9 x 6/8=
54/8 or 6 6/8
Compare the following fractions, and explain how you know it is true.
7/8 ___ 7/4
7/8 < 7/4 because fourths are bigger than eighths.
Kailey discovered a pattern. She started with 2 1/4 inches and added 1/4 inch to each measurement. List the next four measurements in her pattern.
2 2/4, 2 3/4, 3, 3 1/4