Respuesta :

mhanifa

Answer:

101/140

Step-by-step explanation:

Solving in steps:

  • -6/15 * 4/7 - (-7)/20 * 4/7 + 3/4  =
  • - 2/5 * 4/7 + 7/20 * 4/7 + 3/4 =
  • - 8/35 + 7/35 + 3/4 =
  • -1/35 + 3*35/4*35 =
  • -4/140 + 105/140 =
  • 101/140