Add the fractions and simplify your answer.

1
3
+
1
5
A.
2
15
B.
1
13
C.
7
15
D.
8
15
That's Correct!
It's Wrong!
1
3
+
1
5

Let’s find the least common multiple of 3 and 5.

Least common multiple of 3 and 5 is 15.

So, LCD = 15

Now, rewrite both the fractions with denominator 15.

1
3
×
5
5
=
5
15
1
5
×
3
3
=
3
15

Now, add:

5
15
+
3
15
=
5 + 3
15
=
8
15
So, the required sum of the given fractions is
8
15
.

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Key Data

Questions
10
Grade
5
Theme
Fractions
Passing score
80%

Progress

8 Incorrect
10 Correct
1
2
3
4
5
6
7
8
9
10
Restart