1)
3 3/7 + 1 3/14 *(8 3/5 - 1 3/5)=
3 3/7 + 17/14 * 7=
3 3/7 + 17/2=
3 3/7 + 8 1/2=
3 6/14 + 8 7/14=
11 13/14
или
1) 8 3/5 - 1 3/5= 7
2) 1 3/14 * 7= 17/14 * 7= 17/2= 8 1/2
3) 3 3/7 + 8 1/2= 3 6/14 + 8 7/14= 11 13/14
2)
2 5/9 - 2 1/4 + 6 2/9 * 3/8= 2 23/36
1) 6 2/9 * 3/8= 56/9 * 3/8= 7/3 = 2 1/3
2) 2 5/9 - 2 1/4= 2 20/36 - 2 9/36= 11/36
3) 11/36 + 2 1/3= 11/36 + 2 12/36= 2 23/36
3)
(1/2)³ + (3 1/3 - 2 8/9)²= 2/9
1) 3 1/3 - 2 8/9= 3 3/9 - 2 8/9= 2 12/9 - 2 8/9= 4/9
2) (1/2)³ + (4/9)²= 1/8 + 16/81= 81/648 + 128/648= 144/648= 12/54= 2/9