tính
a) 100 : 17 + 53 : 17
b) 1895 : 5 - 1745 :5
c) (864.48 - 432.96) : (864.48.432)
d) (16.17 - 5) : (16.16 + 11)
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a, (195 . 132 - 132 . 85) : 110
\(=132\left(195-85\right):110\)
\(=132.110:110\)
\(=132\)
\(\frac{864.48-432.96}{864.48.432}=\frac{432.2.48-432.2.48}{864.48.432}=\frac{0}{864.48.432}=0\)
Ta có cách giải như sau:
\(\frac{864.48-432.96}{864.48.432}\)= \(\frac{432.2.48-432.86}{864.48.432}\)=\(\frac{432.96-432.96}{864.48.432}\)=\(\frac{0}{864.48.432}\)=\(0\)
Have a nice night!everyone.
864.48-432.96/864.48.432
=432.96-432.96/864.48.432
=0/864.48.432
=0
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_