[{"id":2},560,[21,70,56],{"a":64,"b":3,"c":107,"y":169,"t":200,"x":668,"h":2,"g":8,"j":4768,"h1":2,"h2":4,"h3":5,"pos2":2,"pos3":3,"cid":3,"rnd":1},{"d":9,"e":3,"f":3,"h":243,"t":13,"b":5,"c":5,"a":40625,"rnd":3},{"list1":[76,90,-73],"siList1":1,"list2":[-32,76,90],"siList2":-1},{"ty":1,"c":16,"a":6,"b":-3,"n":3},{"c":1,"b":-1,"a":-1,"d":6,"e":6,"rnd":2},{"ps1":{"ts":4,"ms":-6},"ps2":{"ts":-15,"ms":-24}},{"ps2":{"ts":3,"ms":-4},"ps1":{"ts":5,"ms":16}},"{\"js\":\"\",\"order\":[0,3,2,1]}",{"type":1,"c":11,"alpha":18,"R":155,"diem":8,"tia":3,"A":{"x":30,"y":200},"B":{"x":400,"y":200},"C":{"x":233.5,"y":200},"D":{"x":380.9137600257488,"y":152.10236587188314}},"{\"js\":\"\",\"order\":[1,3,0,2]}"]
["S;I;N;H;O;C","2^4\\times5\\times7","7",[0,1,0,1,1,0],[3],"-41","-146","0",{"ts":"-1","ms":"24"},{"ts":"-5","ms":"12"},"[\"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:
\(\left(\frac{4}{5}+\frac{1}{15}\right):\left(\frac{1}{3}-\frac{8}{9}\right)=\frac{1}{3}:\frac{-5}{9}=-\frac{3}{5}\)