Fill in the blanks.
0.2 of the children are equal to 0.75 of the adults.
- Number of children = _____ u
- Number of adults = _____ u
- Total number of children and adults = _____ u
- Difference between the number of children and adults = _____ u
(a)
Change decimal into units.
0.2 =
210 =
15 0.75 =
75100 =
34 15 of the children =
34 of the adults
Make the numerators the same using the LCM of 1 and 3.
LCM of 1 and 3 = 3
1 x 35 x 3 of the children =
3 x 14 x 1 of the adults
315 of the children =
34 of the adults
The totals are shown in the denominators.
Number of children = 15 u
(b)
Number of adults = 4 u
(c)
Total number of children and adults
= 15 u + 4 u
= 19 u
(d)
Difference between the number of children and adults
= 15 u - 4 u
= 11 u
Answer(s): (a) 15; (b) 4; (c) 19; (d) 11
