Tìm 3,3% của A:
A=10101.(5/111111+5/333333-4/111111).
C=10101(5/111111+5/222222+4/111111)
`10101(5/111111+5/222222+4/111111)`
`=10101(10/222222+5/222222+8/222222)`
`=10101xx23/222222`
`=23/22`
Tính nhanh: \(B=10101.\left(\frac{5}{111111}+\frac{2}{333333}-\frac{19}{3.7.11.13.37}\right)\)
\(C=10101\left(\frac{5}{111111}+\frac{5}{222222}+\frac{4}{111111}\right)\)
C=10101(10/222222+5/222222+8/222222)
C=10101.23/222222
C=232323/222222
10101.(5/111111+5/222222-4/3.7.11.13.37)
C=10101.(5/111111 + 5/222222 + 4/3.7.11.13.37 ) = ?
\(C=10101.\left(\frac{5}{111111}+\frac{5}{222222}+\frac{4}{3.7.11.13.37}\right)\)
\(C=10101.\frac{23}{222222}\)
\(C=\frac{23}{22}.\)
C=10101.(5/111111 + 5/222222 + 4/3.7.11.13.37 )
Tính nhanh
10101.(5/111111 + 5/222222 + 4/3.7.11.13.37)
10101.(\(\frac{5}{111111}+\frac{5}{222222}-\frac{4}{3.7.11.13.37}\))
111111=3.7.11.13.37
222222=2.3.7.11.13.37
THẾ ZÔ LM TIẾP
Rut gon
A = 10101 . ( 5 / 111111 + 5 / 222222 - 4 / 3 . 7 . 11 13 37 )