Question

9/10+7/8= con procesos

Answer 1

9/10+7/8=71/40

primero sacamos común denominador

9.......7.............9+7
--- + ---- => ------------
10....8..............8*10

9..+..7 ...........8*9+10*7
---------- => ---------------
80.......................80

72+70.........142.......71
-----------=> ----=> ------
....80.......... 80........40