(1)原式=9/4:2/4=9/2
(2)原式=1/5
(3)原式=15/40:32/40=15/32
(4)原式=36/6:7/6=36/7
(5)原式=3/4:5/3=9/12:20/12=9/20
(6)原式=0.7×6:0.35=0.35×2×6:0.35=12
(1)原式=9/4:2/4=9/2
(2)原式=1/5
(3)原式=15/40:32/40=15/32
(4)原式=36/6:7/6=36/7
(5)原式=3/4:5/3=9/12:20/12=9/20
(6)原式=0.7×6:0.35=0.35×2×6:0.35=12