question_answer

Simplify : \[\frac{2}{5}\,+\,\frac{3}{4}\,-\,\frac{5}{7}\]

A)  \[\frac{140}{61}\]                                

B)  \[\frac{61}{140}\]

C)  \[\frac{130}{51}\]                                

D)  \[\frac{51}{130}\]

E)  None of these