Question

Simplify the expression.

-3/6-5/7

Answer 1

find common denominator:

find a least common product of 6 and 7

Answer 2

i dont understand

Answer 3

multiply cross wise: denominator down left with numerator up right,
numerator up left with denominator down right

Answer 4

can u just tell me the answer

Answer 5

I dont know the answer yet

this is how it goes:
\[-\frac{3 }{ 6 } - \frac{ 5 }{ 7 }=-\frac{7 \times 3 }{ 7 \times 6 } - \frac{ 6 \times 5 }{ 6 \times 7 }\]
do you understand what I did there?

Answer 6

yes sir

Answer 7

ok it is 21 - 30 over 42

Answer 8

-21-30

Answer 9

so -51 over 42 ?

Answer 10

but my answer chooses say different

Answer 11

this is the problem:
\[-\frac{3}{6}-\frac{5}{7}\]?

Answer 12

yes

Answer 13

I get: -21/42 -30/42

6*7=42
3*7=21
5*6=30

I get -51/42. I don't know what wrong

Answer 14

they wont it simplified

Answer 15

want*

Answer 16

you can still split away one whole:
-1 9/42

Answer 17

also:
10*3 = 30 and 4*3 = 12
so, 14*3 = 42

we get:
9/42 = 3 / 14

answer:
-1 3/14