\(a,\dfrac{5}{12}:x=\dfrac{11}{12}-\dfrac{3}{8}\\ \dfrac{5}{12}:x=\dfrac{88-36}{96}\\ \dfrac{5}{12}:x=\dfrac{13}{24}\\ x=\dfrac{5}{12}:\dfrac{13}{24}\\ x=\dfrac{10}{13}\\ b,x:\dfrac{3}{4}-\left(\dfrac{4+2+1}{8}\right)=2\\ x:\dfrac{3}{4}-\dfrac{7}{8}=2\\ x:\dfrac{3}{4}=2+\dfrac{7}{8}\\ x:\dfrac{3}{4}=\dfrac{16+7}{8}\\ x:\dfrac{3}{4}=\dfrac{23}{8}\\ x=\dfrac{23}{8}.\dfrac{3}{4}\\ x=\dfrac{69}{32}\)
a)
5/12:x=11/12-3/8
5/12:x=13/24
x=5/12:13/24
x=10/13.
b)
x:3/4-7/8=2
x:3/4=2+7/8
x:3/4=23/8
x=23/8x3/4
x=69/32
\(a,x=\dfrac{10}{3}\)
\(b,x=\dfrac{69}{32}\)
