1) 3,04 ÷ 1/30 = 3 4/100 ÷ 1/30 = 76/25 ÷ 1/30 = 76/25 × 30 = 456/5 = 91 1/5
2) 16,03 ÷ 27/20 = 16 3/100 ÷ 27/20 = 1603/100 ÷ 27/20 = 1603/100 × 20/27 = 1603/135 = 11 118/135
3) 91 1/5 - 11 118/135 = 456/5 - 1603/135 = (456 × 27 - 1603 × 1)/135 = 12312/135 - 1603/135 = 10709/135 = 79 44/135
Ответ: 79 44/135