Question

Rozwiaz zadania z OBLICZENIAMI!

0,5 x 0,5 + 1/5 x 1 1/5=

(3,8 - 2,9) x (3/8 + 0,125)=

(8 1/3 - 8,1) x (9 - 4 5/7)=

3/4 + 1/4 x 5=

7/8 x 4 + 6 x 5/12=

1 5/6 - 1/6 x 1 1/2=

Answer 1

0,5 x 0,5 + 1/5 x 1 1/5= 0,25 + 1/5 x 6/5 = 0,25 + 7/5 = 25/100 + 7/5 = 25/100 + 140/100 = 165/100 = 1 i 65/100 = 1,65

(3,8 - 2,9) x (3/8 + 0,125)= 0,9 x (0,375 + 0125) = 0,9 x 0,5 = 0,45

(8 1/3 - 8,1) x (9 - 4 5/7)= (25/3 - 81/10) x (9/1 - 33/7) = (250/30 - 243/30) x (63/7 - 33/7) = 7/30 x 30/7 = 1

3/4 + 1/4 x 5= 0,75 + 0,25 x 5 = 0,75 + 1,25 = 2

7/8 x 4 + 6 x 5/12= 7/2 + 5/2 = 12/2 = 6

1 5/6 - 1/6 x 1 1/2= 11/6 - 1/6 x 3/2 = 11/6 - 1/4 = 22/12 - 3/12 = 19/12 = 1 i 7/12