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i need help on my home work

2007-09-20 16:43:22 · 21 answers · asked by Matt 1 in Science & Mathematics Mathematics

21 answers

By a mixed number I assume you mean a number like

2 3/4 .

If you just need to turn it into a fraction first you need to under stand what the parts are called. In my example:

2 is the whole number.
3 is the numerator
4 is the denominator

Step one.

X multiply the whole number (2 ) times the denominator (4)

this will equal 8

Step two.

+ Add this answer (8) to the numerator (3)

this will equal 11

Step three.

Take this answer (11) and make it your new numerator over the old denominator (4)

Answer 2 3/4 = 11/4

This is considered an improper fraction. Not wrong just not "polite" ha!

Now use your other numbers and go on!

2007-09-20 16:56:16 · answer #1 · answered by farmfresh 3 · 0 0

For example 1 3/4:
3 5/8

1 3/4 = 1 + 3/4 = 4/4 + 3/4 = 7/4

3 5/8 = 3 + 5/8 = (3*8)/8 + 5/8 = 24/8 + 5/8 = 29/8

So, multiply the whole number by a factor of x/x where x = the denominator. This is because x/x is =1 for all numbers except 0, so this will not change your fraction. Then simply add numerators.

2007-09-20 16:51:17 · answer #2 · answered by intrepid_mesmer 3 · 0 0

Say you were trying to change 3 and1/2 into a fraction.

1. First, you want to multiply the denominator to the whole number. 3 * 2 = 6 That will give you the numerator of your converted fraction

2. Next, you add the numerator and whole number together. 3 + 1 = 4 and that will give you the denominator of your converted fraction.

3. Now that the fraction has becom 6/4, you can reduce it further to become 3/2.

There you go!

2007-09-20 16:51:59 · answer #3 · answered by Anonymous · 0 0

I'll answer this through an example:

3 4/7

Step 1: multiply the denominator by the whole number in front:
3 x 7 = 21

Step 2: Add the numerator to the result from step 1:
21 + 4 = 25

Step 3: The result of step 2 is the new numerator, the denominator remains unchanged:

Final answer: 25/7

2007-09-20 16:48:20 · answer #4 · answered by lhvinny 7 · 0 0

Fractions incorporate 2 numbers. the best quantity is named the numerator. the backside quantity is named the denominator. numerator denominator An wrong fraction is a fraction that has a numerator extra beneficial than or equivalent to its denominator. a ideal fraction is a fraction with the numerator smaller than the denominator. A mixed quantity consists of an integer observed with the aid of a ideal fraction. occasion: The mixed quantity, 3 3/5, can get replaced to an wrong fraction with the aid of fixing the integer element to a fraction with the comparable denominator because of the fact the fractional element and then including the two fractions. thus the integer element (3) is converted to fifteen/5. The sum of the two fractions turns into 15/5 + 3/5 = 18/5. the great conversion is: 3 3/5 = 15/5 + 3/5 = 18/5.

2016-11-06 00:23:07 · answer #5 · answered by ? 4 · 0 0

Suppose you had a mixed number like 2 and (1/7).

you would multiply the whole number by the denominator of the fraction. so 2 * 7 = 14 parts.

14 parts + 1 part = 15 parts

=> 15/7

2007-09-20 16:51:58 · answer #6 · answered by Anonymous · 0 0

*note* = this process will always give you an improper fraction

Step 1. Multiply the whole number by the denominator (bottom number)

Ex.
3 4/5 >>> 3 x 5 = 15


Step 2. Add the numerator (top number) to your total

4 + 15 = 19


Step 3. Place your new total over your original denominator, and there ya go!

19 = new total
5 = original denominator

New fraction: 19/5

3 4/5 = 19/5


Hope this helps, and good luck on the math homework!

2007-09-20 17:01:53 · answer #7 · answered by sakura32506 2 · 0 0

multiply the whole number by the denominator and add the numorator to that and keep the original denominator. Example: 3 2/5= 3 x 5 + 2
= 15 + 2
=17 which is 17/5

2007-09-20 16:53:57 · answer #8 · answered by poryk5 2 · 0 0

Mulitply the denominator (bottom number) by the whole number.

Then add the numerator(top number) to that number.

The denominator stays the same.

1 2/4 = 6/4 ( 4 x1 + 2= 6 and the numerator stays the same)

2007-09-20 16:47:29 · answer #9 · answered by Penny 5 · 0 0

Example:

3 1/4

First multiply 3 X 4/4 = 12/4

Then add 1/4 = 13/4

2007-09-20 16:47:48 · answer #10 · answered by Rick 2 · 0 0

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