a)x=(3/8+5/12):5/4
=>x=19/30
b)x=3/8:5/4
=>x=3/10
a) 5/4x X = 19/24
X = 19/24 : 5/4
X = 19/30
b)
X = 3/8 : 5/4
X = 3/10
\(\dfrac{5}{4}\times x=\dfrac{3}{8}+\dfrac{5}{12}\)
\(\dfrac{5}{4}\times x=\dfrac{19}{24}\)
\(x=\dfrac{19}{24}\div\dfrac{5}{4}\)
\(x=\dfrac{19}{30}\)
\(\dfrac{5}{4}\times x=\dfrac{3}{8}+\dfrac{5}{12}\)
\(\dfrac{5}{4}\times x=\dfrac{19}{24}\)
\(x=\dfrac{19}{24}\times\dfrac{5}{4}\)
\(x=\dfrac{19}{30}\)
b,
\(\dfrac{5}{4}\times x=\dfrac{3}{8}\)
\(x=\dfrac{3}{8}\div\dfrac{5}{4}\)
\(x=\dfrac{3}{10}\)
a) \(\dfrac{5}{4}xX=\dfrac{19}{24}\)
\(X=\dfrac{19}{24}:\dfrac{5}{4}\)
\(X=\dfrac{19}{30}\)
vậy x=...
b) \(X=\dfrac{3}{8}:\dfrac{5}{4}\)
\(x=\dfrac{3}{10}\)
vậy x = ....