Question

12点六乘以125%加3又五分之二除以五分之四加1.4乘以12.5

Answer 1

12.6×125%+3又5分之2÷5分之4+1.4×12.5
=12.6×125%+3.4×4分之5+1.4×12.5
=12.6×1.25+3.4×1.25+14×1.25
=1.25×（12.6+3.4+14）
=1.25×30
=37.5