Question

ME AJUDEM !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

a) 4/5 = x/100
5*x=100*4
5x=400
x=400/5
x=80
80/100 = 80%

b)12/5=x/100
5*x=12*100
5x=1200
x=1200/5
x=140
140/100 ou 140%

c)3/4=x/100
4x=3*100
4x=300
x=300/4
x=75
75/100 ou 75%

d)21/16=x/100
16*x=21*100
16x=2100
x=2100/16
x=131,25
131,25/100 ou 131,25%

e) 9/20=x/100
20x=9*100
20x=900
x=900/20
x=45
45/100 ou 45%

f) 7/8=x/100
8x=7*100
8x=700
x=700/8
x= 140
140/100 ou 140%

Answer 2

4/5 = 80/100 = 80%
12/5 =  240/100 = 240%
3/4 = 75/100 = 75%
21/16 = 131,23/100 = 131,25%
9/20 = 45/100 = 45%
7/8 = 87,5/100 = 87,5%

65/80 = 0,8125
174/45 = 3,86666...
1547/26 = 59,5
205/11 = 18,636363...