TL
4/7-2/15:4/25=4/7-5/6=-11/42
nha
HT
\(\frac{4}{7}-\frac{2}{15}\div\frac{4}{25}\)
\(=\frac{4}{7}-\frac{2}{15}\times\frac{25}{4}\)
\(=\frac{4}{7}-\frac{50}{60}\)
\(=\frac{4}{7}-\frac{5}{6}\)
\(=\frac{24}{42}-\frac{35}{42}\)
\(=-\frac{11}{42}\)
lời giải chi tiết:
4/7 - 2/15 : 4/25 = 11/42 nha bn
\(\frac{4}{7}-\frac{2}{15}\div\frac{4}{25}\)
\(=\frac{4}{7}-\frac{2}{15}.\frac{25}{4}\)
\(=\frac{4}{7}-\frac{5}{6}\)
\(=-\frac{11}{42}\)
