Вычислите 7* 9/16 + 8* 7/16 1-16/25 6*5/14-2*11/14
1) 7*9/16+8*7/16=63/16+56/16=119/16=7,4375 2) 1-16/25=25/25-16/25=9/25=0,36 3) 6*5/14-2*11/14=30/14-22/14=8/14=4/7