Question

五分五分之二加2 5+3 7等于多少？

Answer 1

解：2/5+25+37
＝2/5+（25+37）
＝2/5+62
＝62又2/5。

Answer 2

2/5+2.5+3.7
=0.4+2.5+3.7
=2.9+3.7
=6.6。