Question

Susan is creating a solution. A formula for the solution calls for 7/10 mL of water.
Susan wants to make 2/7 less of the solution than the formula creates.
How much water should Susan use?
Express your answer as a fraction in simplest form.

Answer 1

I need HELP!! please

Answer 2

Okay first find the Greatest Common Denominator for 10 and 7

Answer 3

@fzampich what can 2 and 7 both go into?

Answer 4

14

Answer 5

Sorry 10 and 7

Answer 6

70

Answer 7

Right, so 7/10 is the same as 49/70 and 2/7 is the same as 20/70

Answer 8

ok

Answer 9

Subtract 49/70 - 20/70

Answer 10

29/70

Answer 11

Boom, there's your answer. You can't simplify 29 so 29/70 should be the answer

Answer 12

thanks

Answer 13

You're welcome :)