Adding Fractions
Add these fractions:
1/2 + 1/3 =
5/6
1 - 1/7 =
6/7
3/8 x 2/9 =
6/72 = 1/12
5/7 : 1/4 =
20/7
A triangle that is isosceles has all sides with equal length. Correct or not?
No. Isosceles means two sides are equal size.
Equilateral means all sides are equal size.
Add these fractions:
2/5 + 1/5 =
3/5
2/3 - 1/7 =
11/21
2/5 x 2/7 =
4/35
2/5 : 1/9 =
18/5
A triangle that is obtuse has one angle that is larger than 90 degrees. Correct or not?
Correct.
1/9 + 1/3 =
4/9
5/7 - 1/7 =
Multiply these fractions and then convert the result in a decimal number:
2/50 x 1/2 =
2/100 or 1/50
4 : 1/3 =
7
Find the surface area for this rectangular prism:
H = 12 cm
L = 10 cm
W = 5 cm
2 (12 x 10) + 2 (12 x 5) + 2 (10 x 5) =
(2 x 120) + (2 x 60) + (2 x 50) =
240 + 120 + 100 = 460 cm2
Add the following fractions:
1/3 + 2/3
3/3 or 1
5/6 - 1/2 =
2/6 = 1/3
1/2 x 1/3 =
1/6
1/3 : 1/6 =
6/3 = 2
You have 5 seconds to answer this multiplication fact:
8 x 7 =
56
2/3 + 1/7 =
17/21
2 - 1/8 =
15/8
3/5 x 5/7 =
15/35 = 3/7
4 : 1/8 =
32
Find the volume of a rectangular prism with these measurements:
L = 4 inch
W = 2 inch
H = 12 inch
4 x 2 x 12 = 8 x 12 = 96 inch3