Răspuns:
Sper ca înțelegi din poză
=7/12:(3·16+1)/16=7/12:49/16=7/12·16/49=4/21
=1 intreg 1/4=(1·4+1)/4=5/4
=(2·3+2)/3:(2·3+1)/3=8/3:7/3=8/3·3/7=8/7
=(5·6+1)/6:(6·9+8)/9=31/6:62/9=31/6·9/62= 3/4
=16:(9·5+3)/5=16:48/5=16·5/48=5/3
