Question

Lm cả 2 bài mình sẽ tích cho ko thì chỉ bình luận cho thui L😚 Sweet Home ✨ 🏠❤🏠💃💛🏃🎶🎶

Answer 1

a, x=132

b,x=10

bài 2:

a, 22/55+25/125+1020/5100

=2/5+1/5+1/5=4/5

b, 22/77+56/98+25/105

=2/7+4/7+5/21

=6/21+12/21+5/21=23/21

 

 

Answer 2

a: Ta có: \(\dfrac{x}{33}=4\)

nên x=132

b: Ta có: \(\dfrac{5}{x}=\dfrac{1}{2}\)

nên x=10

 

Answer 3

a) \(\dfrac{x}{33}=4\Rightarrow x=33.4=132\)

b) \(\dfrac{5}{x}=\dfrac{1}{2}\Rightarrow x=5.2=10\)

a) \(\dfrac{22}{55}+\dfrac{25}{125}+\dfrac{1020}{5100}=\dfrac{2}{5}+\dfrac{1}{5}+\dfrac{1}{5}=\dfrac{4}{5}\)

b) \(\dfrac{22}{77}+\dfrac{56}{98}+\dfrac{25}{105}=\dfrac{2}{7}+\dfrac{4}{7}+\dfrac{5}{21}=\dfrac{6+12+5}{21}=\dfrac{23}{21}\)

Answer 4

\(\dfrac{22}{55}+\dfrac{25}{125}+\dfrac{1020}{5100}=\dfrac{2}{5}+\dfrac{1}{5}+\dfrac{1}{5}=\dfrac{4}{5}\)

\(\dfrac{22}{77}+\dfrac{56}{98}+\dfrac{25}{105}=\dfrac{2}{7}+\dfrac{4}{7}+\dfrac{5}{21}=\dfrac{23}{21}\)