[{"id":4},17640,[60,45,75],{"a":53,"b":3,"c":140,"y":159,"t":194,"x":652,"h":3,"g":15,"j":13410,"h1":3,"h2":5,"h3":6,"pos2":0,"pos3":1,"cid":2,"rnd":3},{"d":8,"e":2,"f":3,"h":64,"t":24,"b":3,"c":3,"a":648,"rnd":0},{"list1":[73,-17,-43],"siList1":-1,"list2":[-73,17],"siList2":-1},{"ty":1,"c":18,"a":2,"b":-4,"n":2},{"c":3,"b":2,"a":6,"d":8,"e":5,"rnd":4},{"ps1":{"ts":-2,"ms":6},"ps2":{"ts":9,"ms":12}},{"ps1":{"ts":2,"ms":7},"ps2":{"ts":7,"ms":14}},"{\"order\":[0,2,3,1],\"js\":\"\"}",{"type":2,"c":10,"alpha":162,"R":150,"diem":1,"tia":1,"A":{"x":30,"y":200},"B":{"x":400,"y":200},"C":{"x":215,"y":200},"D":{"x":72.34152255572698,"y":153.64745084375787}},"{\"order\":[2,3,1,0],\"js\":\"\"}"]
["D;A;O;T","2^3\\times3^2\\times5\\times7^2","15",[1,1,0,0,1,0],[0],"43","50","21",{"ts":"5","ms":"12"},{"ts":"4","ms":"7"},"[\"0\"]",[2],"[\"0\"]"]
Tính: \(\left(\frac{4}{5}+\frac{1}{15}\right):\left(\frac{1}{3}-\frac{8}{9}\right)\)
- \(-\frac{39}{25}\)
- \(\frac{-13}{25}\)
- \(-\frac{1}{3}\)
- -1
Hướng dẫn giải:
\(\left(\frac{4}{5}+\frac{1}{15}\right):\left(\frac{1}{3}-\frac{8}{9}\right)=\frac{1}{3}:\frac{-5}{9}=-\frac{3}{5}\)