Question

Prosze pomocy .. obliczcie a)5/102x204= b)17/52x156= c)21x9/42= d)36x11/14= e)14x6/35= f)23/25x15= g)18x5/27= h)13/90x18= i)19/42x28= Prosze o szybką odpoowiedz

Answer 1

a) 5/102*204/1=5/1*2/1=10

b)17/52*156=17/1*3=51

c)21*9/42=9/2=4 1/2

d)36*11/14=18*11/7=198/7=28 2/7

e)14*6/35=84/35=2 4/10

f)  23/25*15=23/5*3=69/5=13 4/5=13,8

g)18*5/27=2*5/3=10/3=3 1/3

h)13/90*18=13/10*2=26/10=2 6/10=2,6

i) 19/42*28= 19/21*14=19/3*2=38/3=12 2/3

Answer 2

a)5/102*204=-5*204/102=-1020/102= -10
b)17/52*156= -17*156/52= -2652/52= -51
c)21*9/42= -21*9/42= -189/42= -4,5
d)36 * 11/14 = 143/7 = 20 3/7
e) 14 * 6/35 = 12/5 = 10 2/5 = 10,4
f) 23/25 * 15 = 69/5 = 13 4/5 = 13,8
g) 18 * 5/27 = 10/3 = 3 1/3
h) 13/90 * 18 = 13/5 = 10 3/5 = 10,6
i) 19/42 * 28 = 76/6 = 12 4/6 = 12 2/3