Thực hiện phép tính
a ) 11/5 : 33/-65
b) 6/12 – 27/7 . 1/18
c) -4/5 : ( 5/8 – 7/4 )
d) 9/14 . 21/6 – 15/6
e) 2/3 . ( 5/8 + 39/12 )
giúp mik vs ạ
Thực hiện phép tính a ) 11/5 : 33/-65 b) 6/12 – 27/7 . 1/18 c) -4/5 : ( 5/8 – 7/4 ) d) 9/14 . 21/6 – 15/6 e) 2/3 . ( 5/8 + 39/12 ) giúp mik vs ạ
By Aaliyah
a)$\frac{11}{5}$ : $\frac{33}{-65}$
=$-\frac{13}{3}$
b)$\frac{6}{12}$ – $\frac{27}{7}.$ $\frac{1}{18}$
=$\frac{6}{12}$ – $\frac{3}{14}$
=$\frac{2}{7}$
c)$-\frac{4}{5}:$ ($\frac{5}{8}$ – $\frac{7}{4}$)
=$-\frac{4}{5}:$ $-\frac{9}{8}$
=$\frac{32}{45}$
d)$\frac{9}{14}.$ $\frac{21}{6}$ $-\frac{15}{6}$
=$\frac{9}{4}$ $-\frac{15}{6}$
=$-\frac{1}{4}$
e)$\frac{2}{3}$ . ($\frac{5}{8}$ + $\frac{39}{12}$)
=$\frac{2}{3}$ . $\frac{31}{8}$
=$\frac{31}{12}$
$chucbanhoktot$
$chomikxinctlhnnha$