Question

Ułamki.

Zadania z załączniku

Proszę o PILNE zrobienie tych zadań .

Dam Naj

Answer 1

7.
c). 24/35 * 7/10 * 5/6 = 2/5

4.
a). 1 i 1/2 : 3/4= 3/2 :3/4 = 3/2 * 4/3 = 2
b). 2 i 1/3 : 7/9 = 7/3 : 7/9 = 7/3 * 9/7 = 3
c). 8 i 2/3 : 2/5 = 26/3 : 2/5 = 26/3 * 5/2 = 65/3 = 21 i 2/3
d). 15 i 2/5 : 2 i 1/5 = 77/5 : 11/5 = 77/5 * 5/11 = 7
e). 2 i 1/2 : 1 i 1/4 = 5/2 : 5/4 = 5/2 * 4/5 = 2
f). 5 i 2/3 : 2 i 1/6 = 17/3 : 13/6 = 17/3 * 6/13 = 34/13 = 2 i 8/13

1.
i). 5 i 1/2 + 3 i 1/4 : 1/4 + 2 i 1/2 * 1/5= 5 i 1/2 + 13/4 * 4 + 5/2 * 1/5 = 5 i 1/2 + 13 + 1/2 = 19
j). (5: 1 i 2/3 + 6 i 1/2)*2 = ( 5 : 5/3 + 6 i 1/2) *2= (5 * 3/5 + 6 i 1/2)*2 = (3 + 6 i 1/2)*2= 9 i 1/2 *2 = 19/2 * 2 = 19
k). (5 i 1/4 : 2 i 1/2) : 1/3 = ( 21/4 : 5/2 ) : 1/3 = ( 21/4 * 2/5) : 1/3= 21/10 * 3 = 63/10 = 6,3
l). (12 i 1/3 - 1/2) *12 : 1 i 1/3 = ( 37/3 - 1/2 ) * 12 : 4/3 = (74/6 - 3/6) * 12 * 3/4 = 71/6 * 9 = 213/2 = 106,5

Answer 2

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