4/5 + 3/4 : X = 1/2
3/4:x = 1/2 - 4/5
3/4 : x = -3/10
x=3/4 : (-3/10)
x=-5/2
\(\frac{4}{5}+\frac{3}{4}:x=\frac{1}{2}\)
\(\frac{3}{4}:x=\frac{1}{2}-\frac{4}{5}\)
\(\frac{3}{4}:x=-\frac{3}{10}\)
\(x=\frac{3}{4}:\left(-\frac{3}{10}\right)\)
\(x=-\frac{5}{2}\)
Lớp 5 chưa học số âm, cậu học hè chương trình lớp 6 ak?
\(\frac{4}{5}+\frac{3}{4}:x=\frac{1}{2}\) => \(\frac{3}{4}:x\)=\(\frac{5}{10}\)-\(\frac{8}{10}\)=\(\frac{-3}{10}\)
=> \(x=\frac{3}{4}:\frac{-3}{10}=\frac{3}{4}.\frac{10}{-3}=\frac{-5}{2}\)
4/5 +3/4 : X = 1/2
3/4 : X = 1/2 -4/5
3/4 : X = -3/10
X = 3/4 : -3/10
X = -5/2
\(\frac{4}{5}+\frac{3}{4}:x=\frac{1}{2}\)
\(\frac{3}{4}:x=\frac{1}{2}-\frac{4}{5}\)
\(\frac{3}{4}:x=\frac{5}{10}-\frac{8}{10}\)
\(\frac{3}{4}:x=\left(-\frac{3}{10}\right)\)
\(x=\frac{3}{4}:\left(-\frac{3}{10}\right)\)
\(x=\frac{3}{4}\cdot\left(-\frac{10}{3}\right)\)
\(x=-\frac{30}{12}=-\frac{5}{2}\)