Question

[Khanh Le]

các bn giải nha<333

Answer 1

[❖ミ★𝓣𝓻𝓪𝓷𝓰 (𝓯𝓪𝓷 𝓛𝓝𝓓)★彡『ʈєɑɱ❖๖ۣۜƝƘ☆...]

\(a,\frac{1}{9}\)

\(b,\frac{-3}{20}\)

\(c,\frac{9}{8}\)

HT

Answer 2

[Lê Minh Vũ]

\(a)\)\(\left(-\frac{1}{6}\right).\left(-\frac{15}{19}\right).\frac{38}{45}\)

\(=\)\(\left(-\frac{1}{6}\right).\left(-\frac{15}{45}\right).\frac{38}{19}\)

\(=\)\(\left(-\frac{1}{6}\right).\left(-\frac{1}{3}\right).2\)

\(=\)\(\left(-\frac{1}{6}\right).\left(-\frac{2}{3}\right)\)

\(=\)\(\frac{2}{18}\)

\(=\)\(\frac{1}{9}\)