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Sagot :
3/4 => ?/ 100 => (3*100)/4 = 75. 75/100 = 0.75
7/20 => ? / 100 => (7*100) / 20 = 35. 35/100 = 0.35
6/50=> ? / 100 => (6*100)/50 = 12. 12/100 = 0.12
30/200 => ? / 100 => (30*100)/200 = 15/100 = 0.15
720/800 => ?/100 => (720*100)/800 = 9. 9/100 = 0.09
60/150 = ?/100 => (60*100)/150 = 4. 4/100 = 0.04
180/250 = ?/100 => (180*100)/250 = 7.2. 7.2/100 = 0.072
1600/2000 = ?/100 => (1600*100)/2000 = 80. 80/100 = 0.80
7/20 => ? / 100 => (7*100) / 20 = 35. 35/100 = 0.35
6/50=> ? / 100 => (6*100)/50 = 12. 12/100 = 0.12
30/200 => ? / 100 => (30*100)/200 = 15/100 = 0.15
720/800 => ?/100 => (720*100)/800 = 9. 9/100 = 0.09
60/150 = ?/100 => (60*100)/150 = 4. 4/100 = 0.04
180/250 = ?/100 => (180*100)/250 = 7.2. 7.2/100 = 0.072
1600/2000 = ?/100 => (1600*100)/2000 = 80. 80/100 = 0.80
3/4 = pour mettre sous deno 100 :
(3*25)/(4*25) = 75/100 = 75%
1/4 sous deno 100 :
(1*25)/(4*25) = 25/100 = 25%
6/50 = 12/100 = 12%
30/200 = 15/100 = 15%
720/800 = 90/100 = 90%
60/150 =
60/150 = x/100
60*100 = 150x
6000 = 150x
x = 6000/150 = 40
60/150 = 40/100 = 40%
180/250 =
180:250 = x/100
180*100 = 250*x
18000 = 250x
x = 18000/250 = 72
72/100 = 72%
1600/2000 =
160/200 = 80/100
= 80%
(3*25)/(4*25) = 75/100 = 75%
1/4 sous deno 100 :
(1*25)/(4*25) = 25/100 = 25%
6/50 = 12/100 = 12%
30/200 = 15/100 = 15%
720/800 = 90/100 = 90%
60/150 =
60/150 = x/100
60*100 = 150x
6000 = 150x
x = 6000/150 = 40
60/150 = 40/100 = 40%
180/250 =
180:250 = x/100
180*100 = 250*x
18000 = 250x
x = 18000/250 = 72
72/100 = 72%
1600/2000 =
160/200 = 80/100
= 80%
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