Question

Calculati: a)10 supra 16 inmultit la 4 supra 5.
b) 21 supra 19 impartit la (deschidem paranteza) minus 3 supra 38 (inchidem paranteza).
Scuzati-mi scrisul,dar am scris asa pt ca ma grabesc, si nu am mai folosit semne. Raspundeti-mi rpd va rog!!

Answer 1

10/16·4/5=10·4/16·5=40//80 simplificam=1/2
21/19:(-3/38)=21/19·(-38/3) simplificam=14

Answer 2

$\frac{10}{16} * \frac{4}{5} = \frac{2}{4} = \frac{1}{2}$

$\frac{21}{19} :(- \frac{3}{38} ) = \frac{21}{19} *- \frac{38}{3} = -14$