Multiplying Fractions
1/2 x 3/4 =
3/8
2 ÷ 6 =
2/6
Draw then find the area of a rectangle with these dimensions:
length = 6 cm,
width = 4 cm
6cm x 4cm = 24 square cm
A pizza is cut into 8 equal slices. If you eat ¾ of it, how many slices did you eat?
3/4 of 8 =
3/4 x 8/1=
6 slices
2/5 x 5/6
10/30 or 1/3
2 ÷ 1/3 =
Hint: How many thirds are in 2 wholes?
6
There are 6 thirds in 2 wholes.
Find the volume of a rectangular prism: length = 5 cm, width = 3 cm, height = 4 cm.
60 cm³ ( 5×3×4 )
A garden is 5 ½ meters long and 3 ⅖ meters wide. What’s its total area?
18 7/10 m²
1 1/3 x 2/7
12/21 or 4/7
1/4 ÷ 4
Hint: 1/4 split into 4 equal parts. How many parts are in the whole? How much is each part?
1/3 x 1/4 = 1/12
There are 12 parts in the whole. Each part is 1/12
A composite shape consists of a cube (3 cm × 3 cm × 3 cm) stacked on a rectangular prism (3 cm × 3 cm × 5 cm). Find the total volume.
81 cm³
(3x3x3)+ (3x3x5)
27+54
A baker uses 2 ¼ cups of sugar for a batch of cookies. How many cups for 3 batches?
6 3/4 cups
2 1/4 x 3
4/9 x 2 1/2=
20/18 or 10/9
1/5 ÷ 3 =
1/15 (1/5 x 1/3)
Word Problem: A farmer has two rectangular fields. One is 20 m × 15 m, and the other is 10 m × 5 m.
What is the total area of both fields?
350 m²
If a tank is ⅔ full and you drain ⅓ of what’s in it, what fraction of the tank is left?
4/9 of the tank is left
1/3 of 2/3 = 2/9
2/3-2/9 -
6/9-2/9= 4/9
3 3/4 x 5/8 =
75/32 or 2 11/32
9 ÷ 1/4 =
36
There are 36 fourths in 9 wholes
Word Problem: A storage box is made of two stacked rectangular sections. The bottom section is 6 cm × 4 cm × 3 cm, and the top section is 4 cm × 4 cm × 2 cm.
What is the total volume of the storage box?
96 cm³
A swimming pool is 10 meters by 6 meters with a small 2 × 2 meter hot tub inside. What’s the total swimming area?
56 m²
(10x6)-(2x2)