Rút gọn
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Bài 2: Rút gọn:
a, \(\frac{3^4 \cdot 4 - 3^6}{3^5 \cdot 5 + 10 \cdot 3^4}\)
b, \(13 \cdot \frac{1}{6} - 2 \cdot \frac{2}{5} - 23 \cdot \frac{1}{6} \cdot 5\)
c, \(1 - \left[ 2 + 1: \left( 1 - \frac{1}{2} \right) \right]\)
d, \(\frac{21^2 \cdot 14 \cdot 125}{35^2 \cdot 125}\)
e, \(43 - \frac{1}{4} - 2 - 13 - \frac{1}{4} - 3\)
f, \(1 - \frac{5}{8} + \left[ \frac{5}{3} - \frac{1}{4} \right] \cdot \frac{9}{4}\)
g, \(\frac{20^3 \cdot (-49)^2}{14^3 \cdot 5^4}\)
h, \(\frac{11}{25} \cdot (-24, 8) - \frac{11}{25} \cdot 75, 2\)
k, \(3 + 2: \left[ 1 - 1: \left( 3 + \frac{2}{1 - 3} \right) \right]\)
Bài 2: Rút gọn:
a, \(\frac{3^4 \cdot 4 - 3^6}{3^5 \cdot 5 + 10 \cdot 3^4}\)
b, \(13 \cdot \frac{1}{6} - 2 \cdot \frac{2}{5} - 23 \cdot \frac{1}{6} \cdot 5\)
c, \(1 - \left[ 2 + 1: \left( 1 - \frac{1}{2} \right) \right]\)
d, \(\frac{21^2 \cdot 14 \cdot 125}{35^2 \cdot 125}\)
e, \(43 - \frac{1}{4} - 2 - 13 - \frac{1}{4} - 3\)
f, \(1 - \frac{5}{8} + \left[ \frac{5}{3} - \frac{1}{4} \right] \cdot \frac{9}{4}\)
g, \(\frac{20^3 \cdot (-49)^2}{14^3 \cdot 5^4}\)
h, \(\frac{11}{25} \cdot (-24, 8) - \frac{11}{25} \cdot 75, 2\)
k, \(3 + 2: \left[ 1 - 1: \left( 3 + \frac{2}{1 - 3} \right) \right]\)