103
Fractions
19. Complete the remaining:
(a) (b) (c) (d)
(e) (f) (g) (h)
1
5+ =
3
5
4
5
3
8+ =
2
8
5
8
1
7+ =
5
7
1
4+ =
2
4
2
9+ =
3
9
1
3+ =
1
3
3
10 + =
5
10
1
6+ =
2
6
Example 1:
To add the two fractions, we rewrite them with a common denominator to have
equal parts.
Thus
1
3+1
2
1
3+ += =
1
2
3
6
2
6
5
6
1
3
1
2
Note to Teacher
Help the pupils to
observe that the size of
the two fractions are
different.
1
3= 2
6
1
2= 3
6
5
6
Example 2:
1
5+1
2
1
5+ =
1
2
2
10 + =
5
10
7
10
1
5= 2
10
1
2= 5
10
7
10
Thus
Tip: Addition of fractions with different denominators