Question

Pomocy ułamki
b) 1 3/5+2 4/15=
2 1/4+1 2/3=
1 5/6+7/9=
c) 7/10+4/5+1/2=
3/4+5/7+1 1/2=
7/8+1/2+2/4=
d) 2 1/6+7/10+1 2/5=
1 7/8+1/3+2 5/6=
2 7/12+1 1/15+1/2=

Answer 1

B)
1 i 3/5+2  i 4/15=

= 1 i 9/15 + 2 i 4/15=

= 3 i 13/15



2  i 1/4+1 i 2/3=

= 2 i 3/12 + 1 i 8/12=

= 3 i 11/12



1 i 5/6+7/9=

= 1 i 15/18 + 14/18 =

= 1 i 29/18 =

= 2 i 11/18



c)
7/10+4/5+1/2=

= 7/10 + 8/10 + 5/10=

= 20/10=

= 2




3/4+5/7+1 i 1/2=

= 21/28 + 20/28 + 1 i 14/28=

= 1 i 55/28=

= 2 i 27/28




7/8+1/2+2/4=

= 7/8 + 4/5 + 4/8 =

= 15/8 =

= 1 i 7/8




d)

2 i 1/6+7/10+1 i 2/5=

= 2 i 5/30 + 21/30 + 1 i 12/30 =

= 3 i 38/30=

= 4 i 8/30=

= 4 i 4/15




1 i 7/8+1/3+2 i 5/6=

= 1 i 21/24 + 8/24 + 3 i 20/24 =

= 4 i 49/24=

= 6 i 1/24



2 i 7/12+1 i 1/15+1/2=

= 2 i 35/60 + 1 i 4/60 + 30/60=

= 3 i 69/60=

= 4 i 9/60=

= 4 i 3/20