Find the sum and simplify your answer.

32
8
+
51
4
A.
124
8
B.
81
2
C.
86
8
D.
81
4
That's Correct!
It's Wrong!
3 2
8
+
5 1
4

To add mixed numbers, we first add the whole number parts together, and then the fraction parts.

Add the whole parts.

3 + 5 = 8

Now, add the fraction parts.

2
8
+
1
4

Let’s find the least common multiple of 8 and 4.

Least common multiple of 8 and 4 is 8.

So, least common denominator = 8

Now, rewrite both the fractions with denominator 8.

2
8
×
1
1
=
2
8
1
4
×
2
2
=
2
8

Now, add:

2
8
+
1
4
=
2
8
+
2
8
=
2 + 2
  8
=
4
8

Now, simplify:

4
8
=
4 ÷ 4
8 ÷ 4
=
1
2

Now, write the sum of whole parts and fraction parts together.

8
1
2
So, the required sum is
8 1
2
.

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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