八分之七乘五分之一乘五分之二等於?

八分之七乘五分之一乘五分之二等於?


7/8x1/5x2/5
=7/40x2/5
=7/100



五點五八减八分之三加五點四二减五分之二等於多少


5.58-3/8+5.42-2/5
=5.58+5.42-0.4-3/8
=11-0.4-3/8
=10.6-3/8
=10.225