分数除法计算题

42/2=21 90*9=810 36/2=18 20/5=4 400/2=200 39/3=13 35/5=7 150/3=50 20*9=180 90/3=30 16*3=48 45/5=9 45*2=90 40*6=240 70*3=210 36/3=12 65/5=13 48/3=16 25*4=100 90/9=10 15*6=90 20*6=120 48/6=8...

1、4/9÷5/6 =4/9×6/5 =24/45 =8/15 2、7/10÷4/5 =7/10×5/4 =35/40 =7/8 3、14/15÷2/3 =14/15×3/2 =42/30 =7/5 4、3/8÷3/4 =3/8×4/3 =12/24 =1/2 5、7/8÷3/4 =7/8×4/3 =28/24 =7/6 6、4/7÷3/14 =4/7×14/3 =56/21 =8/3 7...