Question

Oblicz
-3,6+2 3/7 - 1,4 - (-11/7)=
-5,75+4 2/3-2 1/4-(- 3 1/3)

Answer 1

-3,6+2 3/7 - 1,4 - (-11/7)= -3,6+17/7 - 1,4 - (-11/7)= -252/70 + 170/7 - 98/70 + 110/70 = -82/70 - 98/70 + 110/70 =    -1

-5,75+4 2/3-2 1/4-(- 3 1/3)= -5,75 + 14/3 - 9/4 + 10/3 = -5,75 + 80/12 - 27/12 = -5.75 + 53/12 = -57.5/10 + 53/12 = -345/60 + 265/60 = -80/60 =   - 4/3

Answer 2

-3 3/5+ 2 3/7- 1 2/5-(-1 1/7)= -3 21/35+ 2 15/35- 1 14/35-(-1 5/35)= -1 6/35- 9/35= 3/35

 

-5 3/4+4 2/3- 2 1/4-(-3 1/3)= -5 9/12+4 8/12- 2 3/12- (- 3 4/12)= 4 1/2