1)1436:9=159,5
159,5*9=1436
2)7365:8=920,6
920,6*8=7365
3)3506:7=500,8
500,8*7=3506
4)7251:5=1450,2
1450,2*5=7251
1) 40+6 1/9:2 1/17-10/11=42,1
6 1/9:2 1/17=55/9:35/17=55×17:9×35=187/63=
=2 61/63
40 + 2 61/63=42 61/63
42 61/63-10/11= 42 (671-630/693)=
42 41/693=42,1
2. 53,5-14 1/6×1 1/17+8 2/3=29 5/6
14 1/6×1 1/17=85/6×18/17=15
53,5-15=38,5 =38 1/2
38 1/2- 8 2/3= 30 (1/2-2/3)=30 (3-4/6)=
=30 (-1/6)= 29 6/6-1/6=29 5/6
3. 4 5/8:3 1/12+14, 5-9 7/9=6 2/9
4 5/8:3 1/12=36/8:37/12=36×12:8×37=
=54/37=1 17/37
1 17/37+14,5=1,5+14,5=16
16-9 7/9= 15 9/9-9 7/9=6 2/9
4. 10 1/6+2 3/21×14/47-3,2=7,6
2 2/21×14/47=44/21×14/47=88/141 =0,6
10 1/6+0,6=10,2+0,6=10, 8
10,8 -3,2=7,6
U/v=20/12=5/3. Если u=5, то v=3
740 - ( 240 =+60 ) = 440
(840 -40) :8 = 100
(66 - 6 )* ( 9 +1 ) = 600
(120 - 20 ) +(4 *5 ) = 120
5000: (100 *5 )= 10
300:(10 :10)= 300