Question

Oblicz:

a) 3 * 3/8 g) 4/9 : 8

b) 3/5 * 4/7 h) 6 : 2/3

c) 5/16 * 24 i) 1cała i 1/8 : 3

d) 2całe i 2/9 * 3/5 j) 8całych i 1/3 : 5/6

e) 3całe i 1/2 * 2całe i 4/7 k) 4całe i 1/5 : 2 całe i 1/3

f) 4całe i 4/5 * 3całe i 3/4 l) 1cała i 3/8 : 6całych i 3/5

Answer 1

a) 3 *3/8 = 9/8 =1i1/8

b) 3/5 *4/7 = 12/35

c) 5/16 * 24= 5/2 *3 = 15/2 =7i1/2

d) 2i2/9 *3/5= 20/9 *3/5 = 4/3 *1/1= 4/3 = 1i1/3

e) 3i1/2 *2i4/7 = 7/2 *18/7 = 1/1 * 9/1 = 9

f) 4i4/5 * 3i3/4= 24/5 * 15/4 = 6/1 * 3/1 = 18

 

g) 4/9: 8 = 4/9 *1/8 = 4/72

h) 6 : 2/3 = 6 *3/2 = 18/2 = 9

i) 1i1/8 : 3 = 9/8 : 3/1 = 9/8 * 1/3 = 9/24 = 3/8 

j) 8i1/3 :5/6 = 25/3 *6/5 = 5/1 * 2/1 = 10 

k) 4i1/5 : 2i1/3 = 21/5 : 7/3 = 21/5 * 3/7 = 3/5 *3/1 = 9/5 = 1i4/5 

l) 1i3/8 : 6i3/5 = 11/8 : 33/5 = 11/8 *5/33= 1/8 *5/3 = 5/24