Casio FX-82AU PLUS Manuale Utente
22
Working with fractions
Practise the calculator fractions skills outlined on pages 6 and 7 with the following
questions that involve fractions. Remember to use the round replay button to position the
cursor correctly when you are using MathIO.
questions that involve fractions. Remember to use the round replay button to position the
cursor correctly when you are using MathIO.
1. Evaluate
1
3
2
4
+
and express your answer as a mixed numeral, improper fraction
and a decimal.
2. Express
7
2
8
5
´
as a fraction.
3. Write the value of
1
4
3
5
1 -
as a fraction.
4. Evaluate
9
3
10
5
1
´
and express your answer as an improper fraction.
5. Write the answer to
3
1
8
4
1
2
´
as a mixed numeral.
6. Find the value of
3
1
2
2
5
3
2
¸
and express the value as an improper fraction.
7. Calculate
7
3
10
5
3
5
+
. Write your answer as a mixed numeral.
8. Find the value of
2
3
5
5
( ) . Write your answer as a fraction and as a decimal.
9. Calculate the value of
9
16
1 and express your answer as an improper fraction.
10. Evaluate
3
1
1
4
2
2
2
1
+ ´
. Express your answer as a mixed numeral.
11. Find a decimal value for
4
2
4
5
5
5
1
5
+
¸ .
12. The u button produces the reciprocal of a fraction. Enter
2
5
u and record the
reciprocal of
2
5
as an improper fraction and a mixed numeral.
13. What is the reciprocal of
5
9
? Express your answer as a mixed numeral.
14. Write the reciprocal of
1
2
2
3 as a fraction.
15. What is the value of
3
5
multiplied by the reciprocal of
3
5
?
Answers
1
1
1
4
4
1 ,
5
4
4
, 1.25
2
7
20
3
8
15
4
36
25
25
5
3
32
3
6
35
26
26
7
3
10
9
8
9
25
, 0.36
9
5
4
4
10
1
2
2
3
11 8.55
12
5
2
2
,
1
2
2
2
13
4
5
5
1
14
2
7
7
15 1
© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.