Question

2/3+12/25×6+19/25×12有简便运算吗？

Answer 1

2/3+12/25×6+19/25×12有简便运算

2/3+12/25×6+19/25×12
=2/3+6/25×12+19/25×12
=2/3+（6/25+19/25）×12
=2/3+1×12
=2/3+12
=12又2/3