d)4/15•3 3/8•15/2=
4/45•27/8•15/2
2/45•27/8•15
2/3•27/8
2/3•27/8
2•9/8=9/4
e)6 1/4•7/36•27/35
25/4•7/36•27/35
25/4•1/36•27/5
25/4•1/4•3/5
5/4•1/4•3=15/16
9.a)2 1/2•1/3+2/9
5/2•1/3+2/9
5/6+2/9=19/18
b)3/2•2 1/2-5/6=
3/4•5/2-5/6
15/8-5/6=25/24
c)7/5+2/5•2 2/9
7/5•2/5•8/3
7/5+16/15=37/15
d)17/9-4/27•3 12/16
17/9-4/27•63/16
17/9-1/27•63/4
17/9-1/3•7/4
17/9-7/12=47/36
f)10/21•1 3/4-11/27
10/21•7/4-11/27
10/3•1/4-11/27
5/3•1/2-11/27
5/6+11/27=23/54
10.a)2 2/9•6/25-2/27•9/8
20/9•6/25-2/27•9/8
20/9•6/25-1/27•9/4
20/9•6/25-1/3•1/4
20/9•6/25-1/3•1/4
4/9•6/5-1/3•1/4
4/3•2/4-1/2•1/4
4/5•2/5-1/12
8/15-1/12=9/20
b)12/5•7/24+5/72•2 23/25
12/5•7/24+5/72•73/25
1/5•7/2+5/72•73/25
1/5•7/2+1/72•73/5
7/10+1/72•73/5
7/10+73/360=65/72
c)5/18•27/25-8/81•3 3/8
5/18•27/25-2/81•27/8
1/18•27/5-2/81•27/8
1/2•3/5-2/81•27/8
1/2•3/5-1/81•27/4
1/2•3/5-1/3•1/4
3/10 -1/3•1/4
3/10-1/3•1/4
3/10-1/12=13/60
d)5/18•5 2/5+16/25•5/24
5/18•27/5+16/25•5/24
5/18•27/5+16/5•1/24
5/18•27/5+2/5•1/3
1/18•27+25/5•1/3
1/2•3+2/5•1/3
1/2•3+2/15
3/2+2/15=49/30
3)2 13/16•2/27-4/15•5/24
45/16•2/27-4/15•5/24
45/16•2/27-1/5•5/6
45/16•2/27-1/3•1/6
45/8•1/27-1/3•1/6
5/8•1/3-1/8
5/24-1/18=11/72
f)11/21•7/10• 4 11/16•8/45
11/21•7/10+75/16•8/45
11/3•1/10+75/16•8/45
11/3•1/10+75\2•1/45
11/3•1/10+5/2•1/3
11/30+5/2•1/3
11/30+5/6=6/5
Bună ți am putut atașa doar o poză ,dar restul ți le am făcut aici sper să te ajute și să fie și corectă
