Fracciones 1

Completa, para que las siguientes fracciones sean

equivalentes:

8

3

9

=
=
12
20
12
18
12
15
=
=
30
10
9

Comparamos los numeradores, y ordenamos las

fracciones originales:

Hacemos fracciones equivalentes con el denominador

obtenido:

3

4
;
;
;
3
5
;
;
;

10

7
m.c.m(4,5,10)=

Calcula:

3

4
5
4
+
2
7
10
2
=
-
5
6
=
=
=
simplificar
+
=
-
Efectuamos la suma
=
5
2
1
2
:
+
10
4

5

3
+
=
1

4

=
=
=
2
1
+
=
(
1
2
+
5
3
3
4
)
=
3
4
=
=
(
+
)
3
4
=
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