Question

Oblicz :

a ) 1 1/3 +3/5 =

b ) 2 5/6 + 1 3/8 =

c ) 5/9 + 5/6 =

d ) 1 7/10 + 2 3/4 =

e ) 6 3/4 - 7/8 =

f ) 6 7/9 - 2/3 =

g ) 1 1/2 6/7 =

h ) 7 3/4 - 5 4/5 =

Answer 1

Oblicz :

a ) 1 1/3 +3/5 = 1 5/15 + 9/15 = 1 14/15

b ) 2 5/6 + 1 3/8 = 2 20/24 + 1 9/24 = 3 29/24 = 4 5/24

c ) 5/9 + 5/6 = 10/18 + 15/18 = 25/18 = 1 7/18

d ) 1 7/10 + 2 3/4 = 1 28/40 + 2 30/40 = 3 58/40 = 4 18/40 = 4 9/20

e ) 6 3/4 - 7/8 = 6 12/16 - 14/16 = 5 28/16 - 14/16 = 5 14/16 = 5 7/8

f ) 6 7/9 - 2/3 = 6 7/9 - 6/9 = 6 1/9

g ) 1 1/2 6/7 = nie napisałaś znaku działania

h ) 7 3/4 - 5 4/5 = 7 15/20 - 5 16/20 = 6 35/20 - 5 16/20 = 1 19/20

Answer 2

a ) 1 1/3 +3/5 = 4/3 + 3/5 = 20/15 + 9/15 = 29/15 = 1 1/15

b ) 2 5/6 + 1 3/8 = 17/6 + 11/8 = 68/24 + 33/24 = 101/24 = 4 5/24

c ) 5/9 + 5/6 = 10/18 + 15/18 = 25/18 = 1 7/18

d ) 1 7/10 + 2 3/4 = 17/10 + 11/4 = 68/40 + 110/40 = 178/40 = 4 9/20

e ) 6 3/4 - 7/8 = 27/4 - 7/8 = 54/8 - 7/8 = 47/8 = 5 7/8

f ) 6 7/9 - 2/3 = 6 7/9 - 6/9 = 6 1/9

g ) 1 1/2 6/7 = 21/14 - 12/14 = 9/14

h ) 7 3/4 - 5 4/5 = 31/4 - 29/5 = 155/20 - 116/20 = 39/20 = 1 19/20