Question

Oblicz
1 1/3-1/25:0,04+ 1 2/3=
1 3/20+3/4:0,6+0,2-(-27)=

Answer 1

1 i 1/3 - 1/25 : 0,04 + 1 i 2/3=

= 1 i 1/3 - 1/25 : 4/100 + 1 i 2/3=

= 1 i 1/3 - 1/25 * 100/4 + 1 i 2/3=

= 1 i 1/3 - 1/1 * 4/4 - 1 i 2/3=

= 1 i 1/3 + 4/4 - 1 i 2/3=

= 1 i 1/3 + 1 - 1 i 2/3=

= 2 i 1/3 - 1 i 2/3=

= 1 i 4/3 - 1 i 2/3=

=  2/3





1 i 3/20  + 3/4 : 0,6 + 0,2 - (-27) =

= 1 i 3/20 + 3/4 : 6/10 + 2/10+ 27=

= 1 i 3/20 + 3/4 * 10/6 + 2/10 + 27=

= 1 i 3/20  + 1/2 * 5/2 + 2/10 +27=

= 1 i 3/20 + 5/4 + 2/10 + 27=

= 1 i 3/20 + 1 i 1/4 + 2/10 + 27=

= 1 i 3/20 + 1 i 5/20 +4/20 +  27=

= 29 i 12/20=

= 29 i 3/5


lub na ułamkach dziesiętnych

1 i 3/20  + 3/4 : 0,6 + 0,2 - (-27) =

= 1 i 15/100 + 75/100 : 0,6 + 0,2 + 27=

= 1,15 + 0,75 : 0,6 + 27,2=

= 1,15 + 1,25 + 27,2 =

= 29,6