Question

Oblicz
a) 1 1/7*1,4=
b) 3 1/5-1,8=
c)2,7: 3 3/4=
d) 1,75+2 2/3=

Answer 1

A) 1 1/7 x 1,4 = 1 1/7 x 1 4/10 = 8/7 x 14/10 = 16/10 = 1 6/10 = 1 3/5.

b) 3 1/5 - 1,8 = 3 1/5 - 1 8/10 = 3 10/50 - 1 40/50 = 1 20/50 = 1 2/5.

c) 2,7 : 3 3/4 = 2 7/10 : 3 3/4 = 27/10 x 4/15 = 108/150 = 54/75.

d) 1,75 + 2 2/3 = 1 75/100 + 2 2/3 = 1 225/300 + 2 200/300 = 3 425/300 = 4 125/300 = 4 25/60 = 4 5/12.

Liczę na najj :)