a) \(\dfrac{24}{100}+0,27+\dfrac{13}{100}+36\%+\dfrac{24}{100}+\dfrac{27}{100}+\dfrac{13}{100}+\dfrac{36}{100}=\dfrac{24+27+13+36}{100}=\dfrac{100}{100}=1\)
b)\(7,15:0,5+7,15\times9-7,15\)
\(=7,15:0,5+7,15\times9-7,15\times1\)
\(=7,15\times2+7,15\times9-7,15\times1\)
\(=7,15\times\left(2+9-1\right)\)
`=7,15xx10`
`=71,5`