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例题：已知a:b=2:3,b:c=4:5m,求a:b:ca:b=2:3=2X4:3x4=8:12b:c=4:5=4x3:5x3=12:151.已知a:b=0.4:0.22,b:c=11/4(4分之11):1/3,求a:b:c2.已知,a:b=15:4,c:b=5:12,求a:b:c
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例题：
已知a:b=2:3,b:c=4:5m,求a:b:c
a:b = 2:3 = 2 X 4 :3 x 4 =8:12
b:c = 4:5 = 4 x 3 :5 x 3 =12:15
1.已知a:b = 0.4 :0.22 ,b:c = 11/4(4分之11) :1/3 ,求a:b:c
2.已知,a:b = 15:4 ,c:b = 5:12 ,求a:b:c
已知a:b=2:3,b:c=4:5m,求a:b:c
a:b = 2:3 = 2 X 4 :3 x 4 =8:12
b:c = 4:5 = 4 x 3 :5 x 3 =12:15
1.已知a:b = 0.4 :0.22 ,b:c = 11/4(4分之11) :1/3 ,求a:b:c
2.已知,a:b = 15:4 ,c:b = 5:12 ,求a:b:c
▼优质解答
答案和解析
1.a:b=20:11,b:c=33:4,a:b:c=60:33:4
=60:33
2.A:b=75:20,b:c=20:48,a:b:c=75:20:48
=60:33
2.A:b=75:20,b:c=20:48,a:b:c=75:20:48
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