The different fractions with the same denominator are Like Fractions.

Fractions, whose denominators are not the same, are called unlike fractions.

To add and subtract like fractions, we simply need to add or subtract the numerators, then we can write the result over common denominator

3/7and 5/7 are like fractions, as they have the same denominator 7.

I. 3/13, 6/13 , 10/13

II. 7/12 , 5/10 , 4/11

III. 1/9 , 1/7 , 1/10

IV. 2/9 , 4/5 , 1/9

A. I only

B. IV only

C. III only

D. II, III only

Correct Answer: A

Step 1: Like fractions have the same denominators.

Step 2: All the three fractions in I have the same denominator 13. So, the fractions in I are like fractions.

Step 3: The denominators of all the three fractions in II have different denominators (i.e., 12, 10, and 11). So, the fractions in II are unlike fractions.

Step 4: The denominators of all the three fractions in III have the different denominators (such as 9, 7, and 10). So, the fractions in III are unlike fractions.

Step 5: The denominators of all the three fractions in IV are 9, 5, and 9. As the denominators of two of the fractions (2/9 and 1/9) are the same and the denominator of the other fraction is not the same like the other two fractions in the group, the fractions in IV are unlike fractions.

Step 6: So, the fractions in the group I are like fractions.

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