Question

quero saber como monta essa conta e rezovela

1/5+1/6+2/3

Answer 1

  1             1                2

------  +   --------   +   --------  =     

 5             6                3      <<  tirar o mmc  ( 5, 6,7 )   = 210

 42            35              140              42+ 35 + 140            217:7              31

-------   +  --------   +  ---------   =     --------------------  =    ----------    >>   _____

210          210          210                       210                     210:7              30