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3 years ago

How do i divide a fraction

Mathematics

2 answers:

spayn [35]3 years ago

8 0

It depend on what type of fraction. generally we have 3 types of fractions which are:1. proper fraction eg:2/3 2.improper fraction eg : 3/2 3.mixed fraction eg: 3 and 1/2
so when you are given to divide a proper fraction then u will change division sign to multiplication and reciprocate the second fraction eg: 2/3÷2/3 you will write it as 2/3×3/2

when given improper fraction u change division sign to multiplication and reciprocate the second fraction eg: 6/5÷8/7 you will write it as 6/5×7/8

when you are given mixed fraction you first change it into improper by multiplying the fraction eg: 3 1/2=6/2 then change division sign to multiplication sign and reciprocate the second fraction eg: 3 and 1/2 ÷ 4 and 1/2=6/2×9/2
hope i helped

Arte-miy333 [17]3 years ago

5 0

I am going to give you an example and then you could plug in your numbers.

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What is 1 6/10-2 7/10

skad [1K]

Answer:

-11/10 or -1 1/10

Step-by-step explanation:

Change to improper fractions format

1 6/10 becomes 16/10

2 7/10 becomes 27/10

16/10 - 27/10 = -11/10

-11/10 is also written -1 1/10

3 0

3 years ago

Read 2 more answers

PLZ HELP! 20 POINTS!

agasfer [191]

Answer:

a) The error is that, the initial value is n=1 NOT n=3

b) The sum is $a_n=a_{n+1}+5=192$

c)The explicit formula is $a_n=5n+3$

The recursive formula is $a_n=a_{n+1}+5$ ,

Step-by-step explanation:

The given arithmetic series is 8 + 13 + ... + 43.

The first term is $a_1=8$ , the common difference is $d=13-8=5$

The nth term is given by:

$a_n=a_1+d(n-1)$

We substitute the values to get:

$a_n=8+5(n-1)\\a_n=8+5n-5\\\\a_n=3+5n$

To find how many terms are in the sequence we solve the equation:

$3+5n=43\\\implies 5n=43-3\\5n=40\\n=8$

The summation notation is $\sum_{n=1}^8(3+5n)$

The error the student made is in the initial value.

It should be n=1 NOT n=3

b) The sum of the arithmetic series is calculated using:

$S_n=\frac{n}{2}(a+l)$

We substitute o get:

$S_8=\frac{8}{2}(5+43)$

$S_8=4(48)$

$S_8=192$

c) The explicit formula we already calculated in a), which is $a_n=3+5n$

The recursive formula is given as:

$a_n=a_{n+1}+d$

We substitute d=5 to get:

$a_n=a_{n+1}+5$

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3 years ago

I need help in part A and part B

mezya [45]

One thing to remember about percent is that "%" means the same as "/100".

A) 25% = 25/100

B) (25/100)*(total pieces) = 20 pieces
Multiply by 100/25 = 4
.. total pieces = 4*(20 pieces) = 80 pieces

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