Question

OBLICZ :

9/2 x 100/6 = ?
21/10 x 30/7 = ?
7/9 x 10/96= ?
9/4x ( - 4/3 ) = ?
- 43/100 : 1 i 4/5 = ?
-2 i 2/3 x 4/12 = ?
-3 i 6/10 : 1 i 4/5 = ?

- 2,78 x ( - 3,97 ) = ?
- 9,19 : 0,9 = ?
14, 404 : (- 0,4) = ?

Daje naj ♥

Answer 1

9/2 * 100/6 = 3/1 * 50/2 = 150/2 = 75
21/10 * 30/7 =  3/1 * 3/1 = 9/1 = 9
7/9 * 10/96 = 7/9 * 10/96 =  70/864 = 35/432
9/4x ( - 4/3 ) = 3/1 * (-1/1) = - 3 
- 43/100 : 1 i 4/5 = - 43/100 : 9/5 = - 43/100 * 5/9 = - 43/20 * 1/9 = - 43/180
-2 i  2/3  * 4/12 = - 8/3 * 4/12 = - 2/3 * 4/3 = - 8/9
-3 i 6/10 : 1 i 4/5 =  - 36/10 : 9/5 = - 36/10 * 5/9 = - 4/2 * 1/1 = - 2

- 2,78 * ( - 3,97 ) =  11,0366
- 9,19 : 0,9 = - 919/100 : 9/10 = - 919/100 * 10/9 = -919/10 * 1/9 = - 919/90 = - 10 19/90
14, 404 : (- 0,4) = - 36,01