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Olenka [21]
3 years ago
10

How to subtract unlike faction

Mathematics
2 answers:
zvonat [6]3 years ago
7 0
First, multiply the individual fractions in order to get the same denominators. Then, add the numerators and don't change the denominator.

For example:
1/2-1/4

You have to multiple the first fraction by two so both fractions have a denominator of 4.

2/4-1/4
=1/4
vovangra [49]3 years ago
5 0
Example:
6/20 - 1/5
First, you need to find out what the least common denominator (lcd) is.
The lcd is 20 because 20 x 1=20 and 4 x 5 = 20
So ...
6/20 = 6/20 and 1/5 = 4/20
then you take the new fractions and subtract them
6/20 - 4/20 = 2/20
Lastly, if possible you simplify
2/20 =1/10
Hope this helps! I tried to make it as least confusing as possible.
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What is the probability that a student eye color would be blue if their grade in physics is A? A two way table is presented belo
Zarrin [17]
The <u>correct answer</u> is:

16/45.

Explanation:

We want the probability that a student's eye color is blue if they made an A in physics.  This means we look at the column for students with an A.

There are 32 students with blue eyes in the A column.

This is out of 32+58=90 students that made an A.

This makes the probability 32/90, which simplifies to 16/45.
8 0
2 years ago
. A tennis supply store pays a wholesaler $90 for a tennis racquet and sells it for $144. What is the markup rate?
I am Lyosha [343]


Formula : Amount of change / Original amount

             1.      144 - 90/ 144

             2.      Subtract 144 and 90

             3.      54/ 144

             4.      Divide 54 by 144

             5       0.375

             6       Move the decimal two places to the right.

              7.      37.5 %

Answer: 37.5% is the markup rate

6 0
3 years ago
Feb 05, 3:07:40 PM
zaharov [31]
Solve (2x - 1)(3x^2 - 9x - 4)
=

7 0
3 years ago
A line passes through the point (-8, 2) and has a slope of -5/4.
UNO [17]

Answer:

y=-5/4x-8

Step-by-step explanation:

2=-5/4(-8)+b

2=10+b

2-10=10-10b

-8=b

8 0
3 years ago
Find the value of the expression <br><br> (688 − c) · 222<br><br> for c = 684.
Luba_88 [7]

(688-684) x 222

You have to do what’s in the parentheses first because of PEMDAS

688-684=4

Then you have to multiply

4x222

=888

5 0
3 years ago
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