Question

zad.1 Oblicz (np.1/4 to ułamek zwykły a np. 1 2/4 to jedna cała i dwie czwarte, a * to mnożenie )

a) 1 2/3 + 4 5/8=

b) 7 1/2 + 2 3/8=

c) 4 1/2 -2 3/4=

d) 7 3/8 - 4 5/6=

e) 7/8 * 16/21=

f) 1 1/2 * 3 2/5=

g) 2 2/3 : 1 1/6=

h) 4 1/4 : 2 3/8=

Answer 1

Zadanie 1

a) 1 2/3 + 4 5/8= 1 16/24 + 4 15/24= 5 31/24= 6 7/24

b) 7 1/2 + 2 3/8= 7 4/8 + 2 3/8= 9 7/8

c) 4 1/2- 2 3/4 = 4 2/4- 2 3/4 = 3 6/4- 2 3/4= 1 3/4

d) 7 3/8- 4 5/6= 7 9/24- 4 20/24= 6 33/24- 4 20/24= 2 13/24

e) 7/8 * 16/21= 112/168

f) 1 1/2* 3 2/5= 3/2* 17/5= 51/10

g) 2 2/3 : 1 1/6= 8/3 : 7/6= 8/3* 6/7= 48/21= 2 6/21

h) 4 1/4: 2 3/8= 17/4 : 19/8= 17/4* 8/19= 136/76= 1 60/76

 

Mam nadzieję, że pomogłam ;-)

Answer 2

a) 1 2/3 + 4 5/8 = 1 i 16/24 + 4 i  15/24 = 5 i 31/24 = 6 i 7/24

 

b) 7 1/2 + 2 3/8 =   7 i 4/8 + 2 i 3/8 = 9 i 7/8

 

 

 c) 4 1/2 -2 3/4 = 9/2 - 11/4 = 18/4 - 11/4 = 7/4 = 1 i 3/4

 

d) 7 3/8 - 4 5/6 = 59/8 - 29/6 =  177/24 - 116/24 = 61/24 = 2 i 13/24

e) 7/8 * 16/21 = 112/168 = 2/3

f) 1 1/2 * 3 2/5 =  3/2 * 17/5 = 51/10 = 5 i 1/10

g) 2 2/3 : 1 1/6 =  8/3 : 7/6 = 8/3 * 6/7 = 48/21 = 16/7 = 2 i 2/7

h) 4 1/4 : 2 3/8= 17/4 : 19/8 = 17/4 * 8/19 = 136/76 = 34/19 = 1 i 15/19