\(\dfrac{-5}{11}+\left(\dfrac{-6}{11}+1\right)=\dfrac{-5}{11}+\dfrac{-6}{11}+1=-1+1=0\)
\(\dfrac{-5}{11}+\left(\dfrac{-6}{11}+1\right)=\dfrac{-5}{11}+\dfrac{-6}{11}+1=-1+1=0\)
a)\(\dfrac{-1}{4}.13\dfrac{9}{11}-0,25.6\dfrac{2}{11}\)
b)\(\dfrac{4}{9}:\left(\dfrac{-1}{7}\right)+6\dfrac{5}{9}:\left(\dfrac{-1}{7}\right)\)
Các bạn giúp mik nha mik sẽ tick và kết bạn. Thank you
1,
Câu a ..\(\dfrac{111}{37}\)< x <\(\dfrac{91}{13}\)
Câu b..\(\dfrac{-84}{14}\)< 3.x <\(\dfrac{108}{9}\)
Mong các bạn giúp đỡ ////// Nhanh nha bạn mai nộp rùi
THANK YOU M.N
2,25:\(\dfrac{-6}{25}\)=??
Các bạn giúp mk vs nha
THANK YOU M.N
*Phép chia
a)\(11\dfrac{1}{4}-\left(2\dfrac{5}{7}+5\dfrac{1}{4}\right)\)
b)\(\left(8\dfrac{5}{11}+3\dfrac{5}{8}\right)-3\dfrac{5}{11}\)
c)\(\dfrac{-1}{4}.13\dfrac{9}{11}-0,25.6\dfrac{2}{11}\)
d)\(\dfrac{4}{9}:\left(\dfrac{-1}{7}\right)+6\dfrac{5}{9}:\left(\dfrac{-1}{7}\right)\)
Tính nhanh:
1) \(\dfrac{2}{15}.6\dfrac{5}{11}+\dfrac{5}{11}.\dfrac{-2}{15}-\dfrac{2}{15}.2015^0\)
2)\(\dfrac{5}{2.7}+\dfrac{3}{14.11}+ \dfrac{4}{11.7}+\dfrac{1}{14.15}+\dfrac{13}{15.16}\)
Các bạn giup mk với !!!Chiều nay mk đi học rồi!!Help me!!!!!!!!!!!!!!!!!!!!!!!
BT2: Tính nhanh
11) \(-\dfrac{5}{7}-\left(-\dfrac{5}{67}\right)+\dfrac{13}{30}+\dfrac{1}{2}+\left(-1\dfrac{5}{6}\right)+1\dfrac{3}{14}-\left(-\dfrac{2}{5}\right)\)
12) \(\dfrac{-1}{4}.13\dfrac{9}{11}-0.25.6\dfrac{2}{11}\)
mk có câu này làm ko ra mong các bạn giúp các bạn có ra kết quả nhớ thử lại nhé
\(5\dfrac{8}{17}:x+\left(-\dfrac{4}{17}\right):x-3\dfrac{1}{7}:17\dfrac{1}{3}=\dfrac{4}{11}\)
Tính hợp lí
a)\(11.\dfrac{1}{4}-\left(2\dfrac{5}{7}+5\dfrac{1}{4}\right)\)
b)\(\left(8\dfrac{5}{11}+3\dfrac{5}{8}\right)-3\dfrac{5}{11}\)
c)\(-\dfrac{1}{4}.13\dfrac{9}{11}-0,25.6\dfrac{2}{11}\)
d)\(\dfrac{4}{9}:\left(-\dfrac{1}{7}\right)+6\dfrac{5}{9}:\left(-\dfrac{1}{7}\right)\)
tìm x
\([\dfrac{6:\dfrac{3}{5}-1\dfrac{1}{16}.\dfrac{16}{7}}{4\dfrac{1}{5}-\dfrac{10}{11}+5\dfrac{2}{11}}-\dfrac{\left(\dfrac{3}{20}+\dfrac{1}{2}-\dfrac{1}{5}\right).\dfrac{12}{49}}{3\dfrac{1}{3}+\dfrac{2}{9}}].x=2\dfrac{23}{96}\)