\(\frac{16.17-5}{16.16+11}=\frac{16.16+16-5}{16.16+11}=\frac{16.16+11}{16.16+11}=1\)

\(\frac{16.17-5}{16.16+11}=\frac{16.\left(16+1\right)-5}{16.16+11}=\frac{16.16+16-5}{16.16+11}=\frac{16.16+11}{16.16+11}=1\)

\(\frac{16.17-5}{16.16+11}\)

= \(\frac{16.\left(16+1\right)-5}{16.16}\)

= \(\frac{16.16+16-5}{16.16+11}\)

= \(\frac{16.16+11}{16.16+11}\)

= \(1\)

\(\frac{16.17-5}{16.16+11}=\frac{17-5}{16+11}=\frac{8}{27}\)

Hok tốt ~~ 

K chắc đâu 

# DanLinh

\(\frac{16.17-5}{16.16+11}\)

= \(\frac{16.\left(16+1\right)-5}{16.16+11}\)

=\(\frac{16.16+16-5}{16.16+11}\) ( nhân tử chung )

= \(\frac{11}{11}\) 

=1

a) \(100:17+53:17=\left(100+53\right):17=153:17=9\)

b) \(1895:5-1745:5=\left(1895-1745\right):5=150:5=30\)

c) \(\left(864.48-432.96\right):\left(864.48.432\right)\)

\(=\left(864.48-432.2.48\right):\left(864.48.432\right)\)

\(=\left(864.48-864.48\right):\left(864.48.432\right)\)

\(=0:\left(864.48.432\right)\)

\(=0\)

d) \(\left(16.17-5\right):\left(16.16+11\right)\)

\(=\left[16.\left(16+1\right)-5\right]:\left(16.16+11\right)\)

\(=\left[16.16+16-5\right]:\left(16.16+11\right)\)

\(=\left[16.16+11\right]:\left(16.16+11\right)\)

\(=1\)

_Chúc bạn học tốt_

a) \(\frac{16.17-5}{16.16+11}=\frac{16.16+16-5}{16.16+11}=\frac{16.16+11}{16.16+11}=1\)1

b ) \(\frac{5}{30}+\frac{15}{90}+\frac{25}{150}+\frac{35}{210}+\frac{45}{270}=\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}\)

      \(=\frac{1}{6}.5=\frac{5}{6}\)

a)  (16x17-5)/(16x16+11)=(16x16-5+16)/(16x16+11)=1

b)  (1x5)/(6x5)+(3x5)/(18x5)+...+(9x5)/(54x5)

=1/6+1/6+1/6+1/6+1/6

=5/6

a) 4/9

b)5/6

k nha !!!

a, (195 . 132 - 132 . 85) : 110

 \(=132\left(195-85\right):110\)   

 \(=132.110:110\)

 \(=132\)

\(\frac{\left(456.11+912\right).37}{13.74}\)

\(=\frac{\left(456.11+456.2\right).37}{13.37.2}\)

\(=\frac{[456.\left(11+2\right).37}{13.37.2}\)

\(=\frac{456.13}{13.2}\)

\(=\frac{456}{2}=228\)