Question

Calculati:
[7intregi si 3\6-(2intregi si 1\8+3intregi si 3\4)]-1=?
{punctul b din imagine}
Multumesc!

Answer 1

$[ 7\frac{3}{16}-( 2\frac{1}{8}+3 \frac{3}{4} )]-1=$

$[ \frac{7*16+3}{16}-(\frac{2*8+1}{8}+\frac{3*4+3}{4} )]-1=$

$[ \frac{115}{16}-(\frac{17}{8}+\frac{15}{4} )]-1=$

$[ \frac{115}{16}-(\frac{17+30}{8} )]-1=$

$[ \frac{115}{16}-\frac{47}{8} )]-1=$

$[ \frac{115}{16}-\frac{2*47}{16} )]-1=$

$[ \frac{115}{16}-\frac{94}{16} )]-1=$

$\frac{21}{16} -1= \frac{21-16}{16} = \frac{5}{16}$