Friendly Fractions are fractions that can easily be changed into decimals.
These fractions have denominators that are factors of 10, 100, 1000, etc.
Examples of Friendly Fractions:
1
10
4
100
13
25
1 10
=
10 100
4
100
13 52
=
25 100
3
5
3 60
=
5 100
3
20
3
15
=
20 100
1
4
1 25
=
4 100
Unfriendly Fractions are fractions that CANNOT be easily changed into
decimals. These fractions have denominators that are factors of 10, 100,
1000, etc.
Examples of Unfriendly Fractions:
1
3
2
9
13
101
1
6
9
11
3
14
When faced with Unfriendly Fractions, you must divide ☺. When you divide
fractions in order to change them into decimals, the denominator becomes
your divisor as shown below. You must add the decimal point and zeros to
make it possible to divide a number like 3 into 1.
Example 1:
1
3
Step 1:
3 1.00
Step 2:
Example 2:
2
3
Step 2:
3 2.00
Step 3:
3 1.00
3 2.00
Try!!!!!____________________________________________________
1
1)
8
2)
3
8
3)
1
9
4)
2
9
5)
1
11