Question

Wykonaj dodawania.

a)3/7+4/5=

b)2/9+5/6=

c)5/8+9/20=

d)1 1/5+ 2 2/3=

e) 2 4/9+ 7/18=

f)3 3/8+ 4 i/10=

Answer 1

3/7 + 4/5 = 15/35 + 28/35 = 43/35 = 1 8/35
2/9 + 5/6 = 8/36 + 30/36 = 38/36 = 1 2/36
5/8 + 9/20 = 25/40 + 18/40 = 43/40= 1 3/40
1 1/5 + 2 2/3 = 1 3/15 + 2 10/15 = 3 13/15
2 4/9 + 7/18 = 2 8/18 + 7/18= 2 15/18
3 3/8+ 4/10= 3 15/40 + 16/40= 3 31/40
Mam nadzieje ze pomoglam i licze na naj ;) 

Answer 2

a)3/7+4/5=15/35+28/35=43/35=1 i 8/35

b)2/9+5/6= 4/18+15/18=19/18=1 i 1/18

c)5/8+9/20= 25/40+18/40=43/40=1 i 3/40

d)1 1/5+ 2 2/3= 6/5+8/3=18/15+40/15=58/15=3 i 13/15

e) 2 4/9+ 7/18=22/9+1/18=44/18+1/18=45/18=2 i 1/2

f)3 3/8+ 4 1/10=27/8+41/10 = 135/40+164/40=299/40=7 i 19/40