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khanhchau
- 02021-09-16T15:20:58+00:00 16/09/2021 at 15:20Reply
x/5 1/4 = 15/16 . 4/5
x/5 1/4 = 3/4
x/5 = 3/4 + 1/4
x/5 = 1/1
x . 1 = 5.1
x . 1 = 5
x = 5: 1
x = 5
minhthue
- 02021-09-16T15:21:25+00:00 16/09/2021 at 15:21Reply
mình xin 5 sao ạ