[{"id":1},2520,[60,30,84],{"a":56,"b":3,"c":131,"y":164,"t":155,"x":618,"h":3,"g":9,"j":8046,"h1":3,"h2":5,"h3":6,"pos2":3,"pos3":1,"cid":4,"rnd":2},{"d":5,"e":4,"f":2,"h":80,"t":34,"b":3,"c":3,"a":918,"rnd":1},{"list1":[14,-83,22],"siList1":-1,"list2":[14,-83],"siList2":1},{"ty":4,"c":3,"d":-3,"m":3,"b":4,"n":2,"a":5},{"c":3,"b":-2,"a":-6,"d":2,"e":5,"rnd":4},{"ps1":{"ts":-4,"ms":-7},"ps2":{"ts":-6,"ms":14}},{"ps1":{"ts":1,"ms":-3},"ps2":{"ts":3,"ms":6}},"{\"order\":[3,2,0,1],\"js\":\"\"}",{"type":1,"c":10,"alpha":162,"R":144,"diem":7,"tia":2,"A":{"x":30,"y":200},"B":{"x":400,"y":200},"C":{"x":215,"y":200},"D":{"x":78.0478616534979,"y":155.50155281000755}},"{\"order\":[0,3,2,1],\"js\":\"\"}"]
["H,O,C,I,M,N","2^3\\times3^2\\times5\\times7","6",[0,1,1,1,0,0],[1],"-22","161","1",{"ts":"1","ms":"7"},{"ts":"-2","ms":"3"},"[\"0\"]",[0],"[\"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:
\(\left(\frac{4}{5}+\frac{1}{15}\right):\left(\frac{1}{3}-\frac{8}{9}\right)=\frac{1}{3}:\frac{-5}{9}=-\frac{3}{5}\)