Question

Juanita needed 3 and 2/3 hours to take a standardized test, and Jordan needed 5 and
1/4 hours. How much more time did Jordan need than Juanita to take the test?

Answer 1

new question please help me

Answer 2

@AZ

Answer 3

this is a simple subtraction question

but with fractions and now I remember you asked the fraction questions in the past xD

Answer 4

so we want to know how much more time Jordan needs than Juanita

so are we doing

5 1/4 - 3 2/3

or

3 2/3 - 5 1/4

Answer 5

this is a new question my teacher jus gave me and I don't understand

Answer 6

remember Jordan needs more time and we want to know how much more time she takes compared to Juanita

Answer 7

yea

Answer 8

so what are we subtracting from what

Answer 9

3 2/3 - 5 1/4

Answer 10

mhmm are you sure?

We want to know how much more Jordan did than Juanita

so think about it like this

I have 5 apples and you have 3 apples

we want to know how many more apples I have compared to YOU

so would we do 3 - 5
or would we do 5 - 3

Answer 11

ok

Answer 12

so it would be 5 - 3 right?

Answer 13

yes!

Answer 14

so look back at your question

are we going to do
\( 5\dfrac{1}{4} - 3\dfrac{2}{3}\)

or

\( 3 \dfrac{2}{3} - 5 \dfrac{1}{4}\)

Answer 15

5 1/4−3 2/3

Answer 16

good

so now we have to make these fractions into improper fractions

I helped you do that last week, do you still remember how?

Answer 17

yea

Answer 18

so you would add the whole numbers together which is 8

Answer 19

no subtract

Answer 20

which is 3

Answer 21

no no, we can't subtract yet

Answer 22

we have to make it an improper fraction first

Answer 23

oh

Answer 24

yea I forgot

Answer 25

so remember

Answer 26

so that was an example

but what is

5 1/4 as an improper fraction
as one number all over 4

Answer 27

5 1/4= 17/4

Answer 28

are you sure mhmm

what is 5 * 4
and then add 1

Answer 29

2

Answer 30

?

Answer 31

5 times 4

Answer 32

20

Answer 33

and then add 1

Answer 34

21

Answer 35

so

5 1/4 is the same thing as 21/4

now what about
3 2/3

can you do the same thing?

Answer 36

3 2/3 = 11/3

Answer 37

good! so now we have

21/4 - 11/3

we need both fractions to have the same denominator so we can subtract them

do you know how to make them have the same denominator?

Answer 38

21/4 - 11/3 = 32/4

Answer 39

no
we are SUBRACTING not adding

also we cannot subtract until we have the SAME denominator

Answer 40

oh yea

Answer 41

=10 /4

Answer 42

like I said

We need to have the SAME DENOMINATOR

Answer 43

so let's make the denominator for both 12

so the first fraction is
21/4

we need to multiply 3 on both the numerator and denominator so we can get 12 as the denominator

what is 21 * 3 =
what is 4 * 3

Answer 44

21 x 3=63

Answer 45

4 x 3= 12

Answer 46

now what do I do

Answer 47

so

21/4 = 63/12

now what about 11/3
let's make the denominator 12

so we have to multiply top and bottom by 4

what is 11 * 4
and what is 3 * 4

Answer 48

11 x 4 = 48

Answer 49

3 x 4 = 12

Answer 50

so 48/12

Answer 51

so 48/12

Answer 52

11 times 4 is not 48

please recheck that part

Answer 53

44

Answer 54

so we have 44/12

now altogether we have

63/12 - 48/12

can you subtract it now?

Answer 55

yes

Answer 56

the denominator is the same which is 12

so just subtract the top part (the numerator)

Answer 57

ok

Answer 58

ok

Answer 59

63/12 - 48/12= 15/4

Answer 60

the 15 is correct

but the DENOMINATOR has to stay the SAME

we had 12 and 12 so we can SUBTRACT
and so your final answer has to be over 12

Answer 61

yea 15/12*

Answer 62

there you go! that's your answer

Answer 63

thank you az

Answer 64

thank you az

Answer 65

you're most welcome!!