Question

Calculați :
$3 \div ( 2\frac{3}{4} - 1 \frac{15}{28}) + \frac{12}{3 } \div \frac{3}{2}$
DAU CORONITA!!!

Answer 1

3 : ( 2  3 / 4 - 1  15 / 28 ) + 12  / 3 : 3 / 2 = 

= 3 : ( 11 / 4 - 43 / 28 ) + 4 x ( 2 / 3 ) 

= 3 : ( 17 / 14 ) + 8 / 3 

= 3 x ( 14 / 17 ) + 8 / 3 

= 42 / 17 + 8 / 3 

= 126 / 51 + 136 / 51

= 262 / 51

Answer 2

=3:(11/4-43/28)+4:3/2=3:(77-43/28)+4x(2/3)=3:(34/28)+8/3=3:(17/14)+8/3=3x(14/17)+8/3=42/17+8/3=262/51