Question

hướng dẫn giúp em bài này đi ạ!

em quên công thức rùi :(

\(\frac{-8}{18}-\frac{15}{27}\)

Answer 1

=-4/9-5/9

=-9/9

=-1

hok tot k nhe

Answer 2

\(-\frac{8}{18}-\frac{15}{27}\)

\(=-\frac{4}{9}-\frac{5}{9}\)

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

\(=-1\)

Answer 3

\(\frac{-8}{18}\)-\(\frac{15}{27}\)

= \(\frac{-4}{9}\)-\(\frac{5}{9}\)

=\(\frac{-4-5}{9}\)

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

= -1

Answer 4

\(\frac{-8}{18}-\frac{15}{27}\)

\(=\frac{-216}{486}-\frac{270}{486}\)

\(=\frac{-486}{-486}=1\)