a)\(x=\dfrac{2}{4}-\dfrac{5}{6}=\dfrac{6}{12}-\dfrac{10}{12}=-\dfrac{4}{12}=-\dfrac{1}{3}\) ?????????????
b)\(x=1000-125=875\)
c)\(x=\dfrac{450}{90}=5\)
b)\(x=\dfrac{1}{2}:\dfrac{8}{3}=\dfrac{1}{2}\times\dfrac{3}{8}=\dfrac{3}{16}\)
x+5/6=1/2
x=1/2-5/6
x=6/12-10/12
x=...-4/12=-1/3(lớp 5 đã hc âm đâu:)?
x=1000-125
x=875
x=450:90
x=5
x=1/2:8/3
x=1/2x3/8
x=3/16