Porfa ayuda nose y le doy 30 puntos.... Question from @jhorel1419

" Life is not a problem to be solved but a reality to be experienced! "

a )6 2/3 + 3 2/5 + 4 3/6 = 14 17/30

b ) 3 1/7 - 5 4/2 = - 3 6/7