can you please help me with these fraction problems?

Question

3/5divided by blank =2
2 1/4 divided by blank =2
1 1/2 divided by blank = 1 1/5
blank divided by 2 1/2= 3/10

Answer 1

3/5 ÷ x = 2
to start, multiply both sides by x
3/5 = 2x
now divide both sides by 2 to get answer

(3/5)÷2 = x

3/5 * 1/2 = x ===> so x = 3/10 or .3

same thing with the others

2 1/4 = 9/4 ÷ x = 2
9/4 = 2x
(9/4) ÷ 2 = x
(9/4) * 1/2 = 9/8 = x

and

1 1/2 = 3/2 ÷ x = 6/5
3/2 = (6/5)x
3/2 ÷ 6/5 = x
3/2 * 5/6 = 15/12 = x

lastly
2 1/2 = 5/2
x ÷ 5/2 = 3/10 here we multiply 5/2 to get x alone
x = (5/2) * (3/10) ===> x = 15/20 or 3/4

if ya have any questions on how to do one of the steps, feel free to msg me.

Answer 2

3/5 divided by y =2
y= 2 x 5/3
y= 2/1 x 5/3
y= 10/3
y= 3 1/3

Answer 3

You would type in the known number and divide it by the answer.

for example in # 1 you would type in (3/5)/2 and you would get .3

and to double check you would put in the number you got where your answer was and you should get the answer.


ex. in #1 you would type (3/5)/.3 and you should get 2

do the same thing for the rest of them.

Answer 4

3/5 * x = 2
also equivalent to
3/5 / (1/x) =2
so
x = 2 / 3/5
and
x =10/3
thus
3/5 / 1/X = 2

follow that for the rest.

Answer 5

I think you have to multiply your answers by the other number to find out the blank but i don't remember if thats what you do or not.

Answer 6

Use Google as a calculator. Just type these into the search bar and wha-bam you have an answer.