Like fractions are the fractions that have the same denominator.
Example :
The picture below practically illustrates like fractions.
When we add/subtract like fractions, we have to the denominator once and add/subtract the numerators. In other words, take the denominator in common and add/subtract the numerators.
Example 1 :
Evaluate :
1/5 + 2/5
Solution :
= 1/5 + 2/5
The above two fractions have the same denominator. So, they are like fractions.
To add the above two fractions, take the de nominator 5 once and add the numerators.
= (1 + 2)/5
= 3/5
Example 2 :
Evaluate :
5/7 - 2/7
Solution :
= 5/7 - 2/7
The above two fractions have the same denominator. So, they are like fractions.
To subtract the above two fractions, take the denominator 7 once and subtract the second numerator 2 from the first numerator 5.
= (5 - 2)/7
= 3/5
Example 3 :
Evaluate :
1/2 + 7/2 - 3/2
Solution :
= 1/2 + 7/2 - 3/2
The above two fractions have the same denominator. So, they are like fractions.
To evaluator the above expression, take the denominator 2 once and combine the numerators.
= (1 + 7 - 3)/2
= 5/2
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