# college maths

posted by .

Find the LCD and add the fractions.
1/125 + 4/50=

11/24
1/1250
1/35
551/6250
(Points: 5)

im not getting the concept of this some help is really needed please

• college maths -

LCD = least common denominator

The LCD is the smallest number that can be divided evenly by both denominators. One way to do that is to list the multiples.

125, 250, 375, 525
50, 100, 150, 200, 250, 300

The smallest number in both lists is 250.

250 / 125 = 2
1/125 * 2 = 2/250

250/50 = 5
4/50 * 5 = 20/250

2/250 + 20/250 = 22/250

Simplifying 22/250 = 11/125

Study this site for a further explanation.

http://www.mathsisfun.com/least-common-denominator.html

• college maths -

thanks very much i now have a better understanding

• college maths -

You're welcome. I'm glad I could help.

• college maths -

20/250= 10/125

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