Question

(4 5/12 - 4 : 2 2/3) x 1,8

1,75 x 3 1/21 + 1/6 : 1/3 + 1,5

5/12 ... = oznacza ułamek

: - podzielić

x - mnożenie

Na teraz dam naj !

Answer 1

(4 5/12 - 4 : 2 2/3) x 1,8=(4 5/12 - 4/1 x 3/8) x 1.8 =(4 5/12 - 12/8) x 1.8=
=( 106/24 - 36/24) x 1.8= 70/24 x 9/5=630/120= 5 30/120

1,75 x 3 1/21 + 1/6 : 1/3 + 1,5= 7/4 x 64/21 + 1/6 x 3/1=448/84+1/2= =448/84+42/84=490/84= 5 70/84

Answer 2

(4 5/12 - 4/1 : 8/3) x 1,8 = (4 5/12  - 4/1 x 3/8) x 1,8 = (4 5/12 - 3/2) x 1 8/10= (4 5/12 - 1 6/12) x 1 8/10 = 2 11/12 x 1 8/10 = 35/12 x 18/10= 5 1/4

 

1 75/100 x 3 1/21 + 1/6 x 3/1 +1,5 = 80/75 + 1/2 + 1 5/10 = 2 1/15

 

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