The figure, not drawn to scale, is made up of Square H and Rectangles J and K. The area of Square H is
811 of the total area of Rectangles J and K.
14 of Square H is shaded.
15 of Rectangle J is shaded.
16 of Rectangle K is shaded. What fraction of the figure is unshaded?
| |
H |
J |
K |
Comparing H and the
total of J and K |
8x1 =
8 u |
11x1 =
11 u |
| Total |
4x2 =
8 u |
5x1 =
5 u |
6x1 =
6 u |
| Shaded |
1x2 =
2 u |
1x1 =
1 u |
1x1 =
1 u |
| Unshaded |
3x2 =
6 u |
4x1 =
4 u |
5x1 =
5 u |
The area of H is repeated. Make the area of H the same. LCM of 8 and 4 is 8.
When H is 8 u, the total areas of J and K is 11 u.
Then adjust the values of J and K so that the total areas of J and K is equal to 11 u.
Unshaded areasTotal area =
6 + 4 + 5 8 + 4 + 5 =
1517 Answer(s):
1517 
