\(\left(\frac{1}{3}+\frac{1}{5}\right).x=\frac{8}{25}\)
\(\frac{8}{15}.x=\frac{8}{25}\)
\(x=\frac{8}{25}:\frac{8}{15}\)
\(x=\frac{1}{5}\)
a) \(\left(\frac{1}{3}x\frac{1}{5}\right)\)x X = \(\frac{8}{25}\)
\(\frac{1}{15}\)x X = \(\frac{8}{25}\)
X = \(\frac{8}{25}:\frac{1}{15}\)
X = \(\frac{24}{5}\)
b) \(\frac{1}{2}:\frac{4}{5}:x=\frac{7}{3}\)
\(\frac{5}{8}:x=\frac{7}{3}\)
\(x=\frac{5}{8}:\frac{7}{3}\)
\(x=\frac{15}{56}\)
( 1/3 + 1/5 ) * X = 8/25
8/15 * X = 8/25
X = 8/25 : 8/15
X = 3/5
DẤU : LÀ DẤU CHIA NHA CÁC BẠN
1/2 : 4/5 : X = 7/3
5/8 : X = 7/3
X = 5/8 : 7/3
X = 15/56