Question

x nhân 1/2 cộng x nhân 1/4 cộng x nhân 1/8 bằng 21/24

Answer 1

\(x\times\frac{1}{2}\)\(+x\times\frac{1}{4}\)\(+x\times\frac{1}{8}\)\(=\frac{21}{24}\)

\(x\times\frac{1}{2}\)\(+x\times\frac{1}{4}\)\(=\frac{21}{24}\)\(\div\frac{1}{8}\)

\(x\times\frac{1}{2}\)\(+x\times\frac{1}{4}\)\(=\frac{168}{24}\)

\(x\times\frac{1}{2}\)\(=\)\(\frac{168}{24}\div\frac{1}{4}\)

\(x\times\frac{1}{2}\)\(=\frac{1344}{24}\)

\(x=\frac{1344}{24}\div\frac{1}{2}\)

\(x=112\)

Answer 2

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