Question

Efectuand calculele se obtine :
a ) 3,(2) - 1 intreg si 1/3 + (5- 4 intregi si 5/9) - ( 2 intregi si 1/5 -3 )=
b) ( 103, 4 - 54 intregi si 2/5 ) - ( 13,13 - 2 intregi si 1/10 ) =
c) ( 44,7- 3 intregi si 2/5 ) - 1,8 - ( 2- 3 intregi si 3/4) =

Answer 1

a ) 3,(2) - 1 intreg si 1/3 + (5- 4 intregi si 5/9) - ( 2 intregi si 1/5 -3 )=
=(32-3)/9- 4/3 +(5 -41/9) -(11/5-3)=
=29/9- 4/3 +5 -41/9 -11/5+3=
=- 4/3 +8 -12/9 -11/5=
=- 4/3 +8 -4/3 -11/5=
=- 8/3 +8 -11/5=
=(- 40 +120 -33)/15=
=47/15= 3,1(3)


 b) ( 103, 4 - 54 intregi si 2/5 ) - ( 13,13 - 2 intregi si 1/10 ) =
=( 103, 4 - 272/5 ) - ( 13,13 - 21/10 ) =
=( 103, 4 - 54,4 ) - ( 13,13 - 2,1) =
=49 - 11,03=
=37,97

 c) ( 44,7- 3 intregi si 2/5 ) - 1,8 - ( 2- 3 intregi si 3/4) =
= ( 44,7- 3,4) - 1,8 - ( 2- 3,75) =
=  41,3 - 1,8 + 1,75 =
=  41,3 - 1,8 + 1,75 =
=41,25