●mi potete aiutare con questo esercizio
Grazie🫠
●mi potete aiutare con questo esercizio
Grazie🫠
90
punti
Livello 1
===============================================================
$\small \left[\left(-\dfrac{1}{2}\right)·\left(-\dfrac{1}{2}+\dfrac{2}{3}-\dfrac{2}{5}\right)÷\dfrac{7}{20}\right]+\left(\dfrac{3}{8}-\dfrac{1}{4}\right)=$
$\small =\left[\left(-\dfrac{1}{2}\right)·\left(\dfrac{-15+20-12}{30}\right)·\dfrac{20}{7}\right]+\left(\dfrac{3-2}{8}\right)=$
$\small =\left[\left(-\dfrac{1}{2}\right)·\left(-\dfrac{\cancel7^1}{\cancel{30}_3}\right)·\dfrac{\cancel{20}^2}{\cancel7_1}\right]+\dfrac{1}{8} =$
$\small =\left[\left(-\dfrac{1}{\cancel2_1}\right)·\left(-\dfrac{1}{3}\right)·\dfrac{\cancel2^1}{1}\right]+\dfrac{1}{8} =$
$\small =\left[\left(-\dfrac{1}{1}\right)·\left(-\dfrac{1}{3}\right)·\dfrac{1}{1}\right]+\dfrac{1}{8} =$
$\small =\dfrac{1}{3}+\dfrac{1}{8} =$
$\small =\dfrac{8+3}{24} =$
$\small =\dfrac{11}{24} $
68268
punti
Genius I