Question

решите пожалуйста срочно 5/14+(5 2/12-3 4/21)=

Answer 1

5/14+(5*12+2/12-3*21+4/21)=5/14+(60+2/12-63+4/21)=5/14+62/12-67/21)=
=5/14+(434-268/84)=5/14+166/84=30/84+166/84=196/84=49/21=7/3=2 1/3