Page 100 - New Medley 4 Semester 2 PDF (Merged)

3
strip is red and of the strip is grey.
9

6
In all, of the strip is shaded.
9

1 2 3 6
So, + + = .
9 9 9 9

1 2 3 1+ 2+ 3 6
Also, + + = =
9 9 9 9 9

Thus, we conclude that when we add two or more like fractions, we add

their numerators and keep the denominator common in the sum.
Subtraction

4 1
of the glass had milk. of the glass has milk.
5 5
4 3
of a glass was full of milk. A child drunk glass of milk.
5 5

1
Now of the glass of milk is left.
5
4 3 1
This can be expressed as: - =
5 5 5

4 3 4- 3 1
Also, 4 – 3 = 1, so, - = =
5 5 5 5

When we subtract a fraction from another like fraction, we get the difference

between the numerators and keep the common denominator in the result.
1 3 4 1 5
Example 10: Add: (a) + (b) + +
7 7 15 15 15

1 3 1+ 3 4
Solution: (a) + = =
7 7 7 7

98