Goi so be la \(a\)
So lon la \(b\), hieu hai so la \(c\)
Theo de bai ta co \(a-b=c\)
maf \(c=\frac{1}{5}b\)
Thay vao de bai, ta co \(a-b=\frac{1}{5}b\)
\(\Rightarrow a=\frac{6}{5}b\)
Lai co \(a+b=441\)
\(\frac{6}{5}b+b=441\)
\(\frac{11}{5}b=441\)
\(\Rightarrow b=441\div\frac{11}{5}\)
\(b=\frac{2205}{11}\)
\(\Rightarrow a=441-\frac{2205}{11}=\frac{2646}{11}\)
Vay....
Goi so be la a
So lon la b, hieu hai so la c
Theo de bai ta co a − b = c
maf c =
5
1 b
Thay vao de bai, ta co a − b =
5
1 b
⇒a =
5
6 b
Lai co a + b = 441
5
6 b + b = 441
5
11 b = 441
⇒b = 441 ÷
5
11
b =
11
2205
⇒a = 441 −
11
2205 =
11
2646
Vay...
