Bài 1:
a)25 196:43=585(dư 129)
b)258 109:103=2505(dư 94)
c)161 354x41=6 615 514
d)968 215x504=487 980 360
Bài 2:
\(\dfrac{18}{36}=\dfrac{1}{2}\)
\(\dfrac{153}{30}=\dfrac{51}{10}\)
\(\dfrac{155}{15}=\dfrac{31}{3}\)
\(\dfrac{27}{18}=\dfrac{3}{2}\)
\(\dfrac{63}{18}=\dfrac{7}{2}\)
\(\dfrac{42}{36}=\dfrac{7}{6}\)
\(\dfrac{25}{15}=\dfrac{5}{3}\)
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