Question

谁能发一下三十道分数乘法简便运算（带答案的）

急急急急！

Answer 1

4/9×4/3=16/27 1/3×1/3=1/9 1/2×1/3=1/6 2/7×7/2×2/7=2/7 21/25×25/42=1/2 4/5×3/4=3/5 8/7×1/2=4/7 7/4×1/4×1/2=7/32 1/7×1/2=1/14 2/3×5/6=5/9 1/5×3/8=3/40 3/5×5/8=3/8 6/7×3/2=9/7 5/6×8/3=20/9 4/11×3/4=3/11 4/9×3/8=1/6 5/3×1/5=1/3 4/3×4/9=16/27 1/3×1/2=1/6 2/7×1/2＝1/7 41/12×1/4=41/48 1/4×3/16=3/64 1/12×9/4=3/16 75/8×1/5=15/8 7/12×1/9＝ 7/108 2/3×7/3＝14/9 3/8×9/4＝27/32 5/3×3/5＝1 4/5×5/8＝1/2 7/9×9/7＝1 2/3×1/7=2/21 1/4×3/50=3/200 4/5×1/2= 2/5 2/3×29/8=29/12 3/2×7/9=7/6 2/3×3/4=1/2 5/6×1/3=5/18 6/5×1/6 =1/5 2/1×7/2=7 3/2×1/3=1/2 1/22×4/5=2/55 5/6×8/3=20/9 4/11×3/4=3/11 2/3×5/6=5/9 1/5×3/8=3/40 3/5×5/8=3/8 8/7×1/2=4/7 7/4×1/2=7/8 1/7×1/2=1/14 2/3×5/6=5/9 1/4×3/16=3/64

追问

谢谢