A=\(\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
A=\(\frac{1.2\left(1+2+3+4+5\right)}{3.4\left(1+2+3+4+5\right)}\)
A=\(\frac{1.2}{3.4}\)
A=\(\frac{1}{6}\)=\(\frac{11111}{66666}\)
Vì\(\frac{11111}{66666}>\frac{11111}{666665}\)
=> A>B
A=\(\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
A=\(\frac{1.2\left(1+2+3+4+5\right)}{3.4\left(1+2+3+4+5\right)}\)
A=\(\frac{1.2}{3.4}\)
A=\(\frac{1}{6}\)=\(\frac{11111}{66666}\)
Vì\(\frac{11111}{66666}>\frac{11111}{666665}\)
=> A>B
So sánh A và B biết : A = 1.2+2.4+3.6+4.8+5.10/3.4+6.8+9.12+12.16+15.20 va B = 111111/666665
So sánh hai phân số A và B:
A = 111111/666665
B = 1.2 + 2.4 + 3.6+4.8+5.10 / 3.4+6.8+9.12+12.16+15.20
1.2+2.4+3.6+4.8+5.10/3.4+6.8+9.12+12.16+15.20
Tính nhanh biểu thức: 1.2+2.4+3.6+4.8+5.10/3.4+6.8+9.12+12.16+15.20
Tính nhanh
1.2+2.4+3.6+4.8+5.10
--------------------------------------
3.4+6.8+9.12+12.16+15.20
\(\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
Tính \(y=\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
Tính nhanh
\(\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
\(\frac{1.2+2.4+3.6+4.8+5.10+6.12}{3.4+6.8+9.12+12.16+15.20+18.24}\)
giúp mình nha!!!