Question

Find the value of a: -3/7 = a/14

a = 6
a = -6
a = 1/6
a = -1/6

Answer 1

@skittles_for_life6422

Answer 2

There is thing people like to call "cross multiply". It isn't really a mathematical term but you can do that.

Answer 3

it really is just multiplying the bottoms on both sides

Answer 4

I dont get it

Answer 5

or if you want we can "reduce" -3/7
I put quotations around the reduce because we are actually going to be multiply top and bottom of -3/7 by an integer such that we can get blank/14

Answer 6

\[\frac{-3}{7}=\frac{?}{14}\]
what number times 7 is 14?

Answer 7

so it would be -1/6

Answer 8

7 times what =14

Answer 9

2?

Answer 10

yes so if you multiply the bottom by 2 you multiply the top by 2

Answer 11

\[\frac{-3}{7} \cdot \frac{2}{2}=?\]

Answer 12

-6/14?

Answer 13

yep
\[\frac{-3}{7}=\frac{-3}{7} \cdot \frac{2}{2}=\frac{-3(2)}{7(2)}=\frac{-3(2)}{14}=\frac{-6}{14}\]

Answer 14

so in short you have
\[\frac{-3}{7}=\frac{-6}{14}\]

Answer 15

but -6/14 is not an option?

Answer 16

I know because that isn't the answer

Answer 17

they are looking for the numerator

Answer 18

\[\frac{-3}{7}=\frac{?}{14} \\ \text{ and you have } \\ \frac{-3}{7}=\frac{6}{14}\]

Answer 19

so the ? is definitely not the whole fraction

Answer 20

it is just the numerator of that one fraction

Answer 21

oops forgot my negative sign up there

Answer 22

\[\frac{-3}{7}=\frac{?}{14} \\ \text{ and you have } \\ \frac{-3}{7}=\frac{-6}{14}\]

Answer 23

so compare these
what should the question mark be?

Answer 24

OH!