1- 5/6= 6/6- 5/6= 1/6
2 -5/6= 1 6/6- 5/6= 1 1/6
10 -3 5/6= 7- 5/6= 6 6/6- 5/6= 6 1/6
-2+ 3/4= -( 1 4/4- 3/4)= - 1 1/4
-2 - 3/4= -( 2+3/4)= -2 3/4= -2,75
2• 3/4= (сокращаем 2 и 4 на 2) =
1• 3/2= 3/2= 1 1/2= 1,5
2: 3/4= 2• 4/3= 8/3= 2 2/3
-3 1/2+ 1/2= -( 3 1/2- 1/2)= -3
3 1/2• 1/2= (3•2+1)/2• 1/2=
7/2• 1/2= 7/4= 1 3/4= 1,75
3 1/2• 2= (3•2+1)/2• 2= 7/2• 2=
(Сокращаем 2 и 2 на 2)
= 7/1• 1= 7
3 1/2 :2= (3•2+1)/2 • 1/2=
7/2• 1/2= 7/4= 1 3/4= 1,75
-14- 1/7= -(14+1/7)= -14 1/7
-14+ 1/7= -(13 7/7- 1/7)= -13 6/7
2 3/4= 3/4= 2 6/4= 3 2/4= 3 1/2= 3,5
1 1/2- 4= -(4- 1 1/2)= -( 3 2/2- 1 1/2)=
-1 1/2= -1,5