Question

Efectuati: a) 1 supra 18 +1 supra 9+ 1 supra 6 b) 7 supra 36 - 1 supra 18 + 3 supra 4 c) 37 supra 18 - 3 supra 4 - 5 supra 6 d) 11 supra 18 - 4 supra 9 + 5 supra 6 - 1 supra 3

Answer 1

Bună! ⭐

_________

$a) \frac{1}{18} +^{2)} \frac{1}{9} +^{3)} \frac{1}{6} =$

$= \frac{1+2+3}{18} =$

$=\frac{6}{18} ^{(6} =\frac{1}{3}$

_________

$b) \frac{7}{36} -^{2)} \frac{1}{18} +^{9)} \frac{3}{4} =$

$=\frac{7-2+27}{36} =$

$=\frac{32}{36} ^{(4} =\frac{8}{9}$

_________

$c) ^{2)} \frac{37}{18} -^{9)} \frac{3}{4} -^{6)} \frac{5}{6}=$

$=\frac{74-27-30}{36} =$

$=\frac{74-57}{36} =$

$=\frac{17}{36}$

_________

$d) \frac{11}{18} -^{2)} \frac{4}{9} +^{3)} \frac{5}{6} -^{6)} \frac{1}{3}=$

$=\frac{11-8+15-6}{18} =$

$=\frac{12}{18} ^{(6} =\frac{2}{3}$