fractions

1. Changing Dissimilar Fractions
to Similar Fractions
OBJECTIVE:
Change dissimilar fractions to similar fractions.

3. 1
4
,
1
3
,
1
5
1
5
,
5
5
,
3
5
1
4
,
5
4
,
3
4
1
3
,
5
7
,
3
1

5. •EXAMPLE:
1
2
𝑎𝑛𝑑
1
4
2 = 2, 4, 6, 8, 10
4 = 4, 8, 12 , 16, 20

6. 1
2
𝑎𝑛𝑑
1
4
(They have 4 as their LCD)
=
1
2
4 ÷ 2 x 1 =
=
1
4
4 ÷ 4 x 1 =

7. We have changed
1
2
and
1
4
into
2
4
and
1
4
.

8. EXAMPLE:
3
10
,
7
15
𝑎𝑛𝑑
9
20
10 = 10, 20, 30, 40, 50, 60, 70, 80
15 = 15, 30, 45, 60, 75, 90, 105, 120
20 = 20, 40, 60, 80, 100, 120, 140

9. 3
10
,
7
15
𝑎𝑛𝑑
9
20
(They have 60 as their LCD)
=
3
10
60 ÷ 10 x 3 =
=
7
15
60 ÷ 15 x 7 =
=
9
20
60 ÷ 20 x 9 =

10. We have changed
3
10
,
7
15
𝑎𝑛𝑑
9
20
into
18
60
,
28
60
and
27
60
.

11. Answer the activity on page 96, reinforcer A
only.