33.4k views
1 vote
Add. 1 1/2 + 3/5 + 1/8

A. 1 5/13

B. 27/15

C. 2 9/40

D. 1 3/8

User Gzim
by
6.4k points

2 Answers

3 votes
Hello! And thank you for your question!

First we are going to find the LCD:

LCD = 40

Then we are going to make the denominators the same as the LCD and change the numberators:

1 + 20/40 + 24/40 + 5/40

After that we will combine the denominators:

1 + 20 + 24 + 5 over 40.

Then Simplify the numberators:

1 + 49/40

Next change 49/40 into a mixed fraction:

1 + 1 9/40

Then simplify further:

2 9/40

Final Answer:

2 9/40
User Ron Fessler
by
6.8k points
4 votes
Get the mixed number into one fraction

(3)/(2) + (3)/(5) + (1)/(8)
Get a common denominator

(60)/(40) + (24)/(40) + (5)/(40)
Now add

(89)/(40)
You can get it back to a mixed number

2 (9)/(40)

User JP Foster
by
6.2k points
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