Решите пожалуйста: 1) 3/14 - 2 8/21 +5/7 2) 14/55 *33/50 :1 24/25
3/14-28/21+5/7=9/42-100/42+30/42=-91/42+30/42=-61/42=-1 19/42 14/55×33/50: 1 24/25=42/250:49/25=6/70