Question

how could i subtract a whole number by a mixed number

Answer 1

like 2-3/4 ?

Answer 2

You would have to convert the whole number into a mixed number with a common denominator to the mixed number given, then subtract.

Answer 3

how about 8- 2 1/2

Answer 4

5 16 - 5 11 1
8- 2 1/2 = 8 - ---- = -------- = ---- = 5 ----
2 2 2 2

Answer 5

please show your work

Answer 6

please show yor work and explain

Answer 7

I hv shown the work.....
first we have to convert the mixed number to improper fraction
then take LCM of the denominators
then solve as shown...

Answer 8

subtract 2, then subtract 1/2

Answer 9

8-2 = 6-.5 = 5.5

Answer 10

well 8-2 1/2 is not a good way to write this. Remember
"2 1/2" is really 2+1/2
so your expression is
8-2+1/2
Also remember that any whole number can be written as "over one"
like 8=8/1
we need a COMMON DENOMINATOR if we want to add fractions, which in this case is 2
so everything needs to be made to be over 2
8=8/1=16/2
2=2/1=4/2
so your expression is now
16/2-4/2-1/2=11/2

Answer 11

the edict to show work is usually for a copy and paste

Answer 12

I guess the question needs to be solved based on fraction facts/methods......

Answer 13

well 8-2 1/2 is not a good way to write this. Remember
"2 1/2" is really 2+1/2
so your expression is
8-(2+1/2)

Answer 14

i wont understand if u dont show the work. thas how i learn.

Answer 15

right, my bad @amistre

Answer 16

and we cant show the work that needs to be shown if you do not communicate to us where your trouble is in subtract 2 1/2 from 8

Answer 17

no

Answer 18

interact, ask question, stuff like that :)

Answer 19

i just need to learn how to do it

Answer 20

it could be any problem

Answer 21

well 8-2 1/2 is not a good way to write this. Remember
"2 1/2" is really 2+1/2
so your expression is
8-(2+1/2)=8-2-1/2
Also remember that any whole number can be written as "over one"
like 8=8/1
we need a COMMON DENOMINATOR if we want to add fractions, which in this case is 2
so everything needs to be made to be over 2
8=8/1=16/2
2=2/1=4/2
so your expression is now
16/2-4/2-1/2=11/2

That's about as complete as it gets, right guys?

Answer 22

juat a whole number subtracted by a mixed number

Answer 23

subtraction is subtraction whether you take part of it away or not

Answer 24

if you have $5 and some one takes $1.75 from you ....

Answer 25

5 - 1 - .75 = 4 - .75 = 3.25

Answer 26

take a simpler case
3-1 1/2
you read as "three minus one and a half"
we here like this written as 3-(1+1/2) because it makes everything more clear
Remember to unmix your mixed numbers first
1 1/2=3/2

so now you have
3-3/2
Get 3 over that common denominator by multiplying it by (2/2)
3(2/2)=6/2

so your problem is now

6/2-3/2=3/2

and there you have it. Please specify where you have any difficulties.

Answer 27

thank you. i understand now.

Answer 28

only thing is, how do you subtract fraction by fraction with regrouping example: 3/4- 5/8

Answer 29

i add (or subtract) fraction usually by equalling them to some unknown number: then I let the math figure the rest out:

\[\frac{3}{4}-\frac{5}{8}=N\]
\[\frac{3(4)}{4}-\frac{5(4)}{8}=(4)N\]
\[3-\frac{5}{2}=4N\]
\[3(2)-\frac{5(2)}{2}=4(2)N\]
\[6-5=8N\]
\[1=8N\]
\[\frac{1}{8}=\frac{8N}{8}\]
\[\frac{1}{8}=N\]