Fractions Worksheet Page 23
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
364 Write these percentages as decimals.
(a) 69%
(b) 43%
(c) 25%
(d) 89%
(e) 50%
(f) 60%
(g) 10%
(h) 5%
(i) 8%
(j) 57.5%
(k) 17.5%
(l) 2.5%
5 Write these percentages as:
(i) fractions in their simplest form
(ii) decimals.
(a) 30%
(b) 90%
(c) 15%
(d) 85%
(e) 2%
(f) 8%
(g) 123%
(h) 12.5%
6 Two friends were comparing test results. Yvan got
70% and Jacques got
12
. By changing them both into
20
fractions in their simplest form, find which one scored
the highest in the test.
9
25
7 Which of these percentages is equivalent to
?
35%
36%
40%
Changing a decimal or a fraction into a
percentage
Changing a decimal into a percentage is the reverse of
changing a percentage to a decimal.
�100
85% � 85
� 0.85
100
�100
To multiply by 100, move the digits
2 places to the left. See Section 1.5.
So 0.85 5 (0.85 3 100)% 5 85%
19
EXAMPLE
Change into percentages:
(a) 0.075
(b) 1.64
(a) 0.075 5 (0.075 3 100)% 5 7.5%
1.64 . 1, so the answer is more
(b) 1.64 5 (1.64 3 100)% 5 164%
than 100%.
82 Number
M03_CMC_SB_IGCSE_6850_U03.indd 82
9/6/09 16:45:18
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education