Question

(87supra20-3,16×0,5):0,02​

Answer 1

Răspuns:

Explicație pas cu pas:

(87supra20-3,16×0,5):0,02​=[87/20-(316/100)·5/10]:2/100=

[87/20-(316·5)/(100·10)]:2/100= [87/20-316/(100·2)]:2/100=

[87/20-158/100]:2/100=   [87·5/20·5-158/100]:2/100=

[(435-158)/100]:2/100=(277/100)·100/2= 277·100/100·2=277/2          

   

Answer 2

Răspuns:

$\frac{277}{2}$

Explicație pas cu pas:

$( \frac{87}{20} - 1.58) \div \frac{1}{50}$

$( \frac{87}{20} - 1.58) \div \frac{1}{50}$

$( \frac{87}{20} - \frac{79}{50} ) \times 50$

$\frac{277}{100} \times 50$

$\frac{277}{2}$