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The five groups of like fractions is :

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3 / 3, 7 / 3, 13 / 3, 39 / 3

3 / 2, 7 / 3, 13 / 3, 39 / 3

3 / 3, 7 / 3, 13 / 9, 39 / 3

3 / 3, 7 / 3, 13 / 5, 39 / 3

answer is A.

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Detailed Solution

Concept- Functions with the same denominator as fractions are called like functions (bottom numbers). However, the fractions' numerators ought to be distinct from one another.
The following group of like fractions:

2 / 7, 3 / 7, 4 / 7, 5 / 7

Due to the fact that they have the same denominator, these fractions are similar.

5 / 11, 7 / 11, 3 / 11, 9 / 11

Given that they share the same denominator (11), these fractions are similar.

4 / 15, 7 / 15, 9 / 15, 39 / 15

Due to the fact that they have the same denominator (15), these fractions are similar.

\frac{21}{119}, \frac{14}{119}, \frac{21}{119}, and \frac{37}{119}

Due to the fact that they share the same denominator (119), these are similar fractions.

\frac{3}{3}, \frac{7}{3}, \frac{13}{3}, \frac{39}{3}

These share the same denominator, making them similar to fractions.
Hence, the current answer is

3 / 3, 7 / 3, 13 / 3, 39 / 3

.
This option (1) is correct.

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