Who can help me with divide and simplify?please

- 12 x 38
-----------------
19 x 6

- 2 x 2

- 4


5 x 18
--------
15 x 10

6
------
5 x 2

3
--
5

1)
12/-19 ÷ 6/38
= -12/19 x 38/6 (divide 19 & 38 by 19)
= -12 x 2/6
= -24/6
= -4

2)
5/15 ÷ 10/18
= 5/15 x 18/10
= 1/3 x 9/5 (divide 3 & 9 by 3)
= 1 x 3/5
= 3/5

1) Keep the first fraction, switch the sign and flip the second fraction.
12/-19 * 38/6 Now multiply across to get
456/-114 and this can be reduced to -4 <==== answer

2) Same thing here, keep the first fraction the same, switch the sign to multiplication, and flip the second fraction.
5/15 * 18/10 Multiply across to get
90/150 and this can be reduced to 3/5 <==== answer

here...
division is the reverse process of multiplication
then ..
( 12/-19) / (6/38 ) = 12/-19 x 38/6 =
(12 x 38) / (-19 x 6) = (12/6) x (38/-19) = 2 x -2 = -4

try this method for no 2. good luck!
thx

Division is the same as multiplication by reciprocal. in other words, x divided by a/b is the same as x times b/a.

12/-19 divided by 6/38 = 12/-19 x 38/6 = 12/6 x 38/-19 = 2 x -2 = 4.

5/15 divided by 10/18 = 5/15 x18/10 = 5/10 x 18/15 = 1/2 x 6/5 = 3/5.

seems you are week in dividing
simply first divide 12/-19 *38/6=-2*2=-4
second 5/15*18/10 = .6

12/-19 divided by 6/38 is same as
12/-19 multiplied by 38/6
12 is 2 times 6 and 38 is -2 times -19
so the expression becomes 2 x -2 = -4

5/15 divided by 10/18 is same as
5/15 multiplied by 18/10
10 is 2 times 5 and 15 is 5 times 3 & 18 is 6 times 3
so the exp becomes 1/5 x 6/2
which is 1/5 x 3 = 3/5 = 0.6

dividing is the same as reversing and multiplying so

12/-19 divided by 6/38 = 12/-19 multiplied by 38/6 = - 4

5/15 divided by 10/18 = 5/15 multiplied by 18/10 = 3/5

(12/-19)/(6/38)=456/-114
simplified=-4
(5/15)/(10/18)=90/150
simplified=3/5

Remember to divide a fraction, flip the second one and multiply.

12/-19 divided by 6/38 becomes 12/-19 * 38/6 = 456/-114 = -4

5/15 divided by 10/18 becomes 5/15 * 18/10 = 50/270 = 5/27