Question

Oblicz: a) 0,2+3/5 b) 1[1/3]-0,1 c) 1,25 * 3/4 d) 0,7 :7/9

Answer 1

 0,2 + 3/5 = 0,2 + 0,60 = 0,80

 1 1/3 - 0,1 = 4/3 - 1/10 = 40/30 - 3/30 = 37/30 = 1 7/30

 0,7 : 7/9 = 7/10 : 7/9 = 7/10 x 9/7 = 9/10

1,25 x 3/4 = 1,25 x 0,75 = 0,9375

 

 

Answer 2

a) 0,2 + 3/5 = 2/10 + 3/5 = 2/10 + 6/10 = 8/10

b) 1 1/3 - 0,1 = 4/3 + 1/10 = 40/30 - 3/30 = 37/30 = 1 7/30

c) 1,25 * 3/4 = 1,25 *  0,75 = 0,9375

d) 0,7 : 7/9 = 7/10 : 7/9 = 7/10 * 9/7 = 9/10