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sattari [20]
2 years ago
5

Does anyone know this answer

Mathematics
1 answer:
Ivan2 years ago
8 0

\frac{1}{a}  =  \frac{1}{b}  +  \frac{1}{c} \\  \\  \frac{1}{12}   =  \frac{1}{b}  +  \frac{1}{22}  \\  \\  \frac{1}{b}  =  \frac{1}{12}  -  \frac{1}{22}  \\  \\  \frac{1}{b}  =  \frac{11}{132}  -  \frac{6}{132}  \\  \\  \frac{1}{b}  =  \frac{11 - 6}{132}  \\  \\  \frac{1}{b}  =  \frac{5}{132}  \\  \\ 5b = 132 \\  \\ b =  \frac{132}{5}  \\  \\ b = 26.4 \\  \\ b = 26

I hope I helped you^_^

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