312÷8/7+312×12.5%
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312÷8/7+312×12.5%=312x7/8+312x0.125=312x(7/8+1/8)=312
咨询记录 · 回答于2022-11-16
312÷8/7+312×12.5%
312÷8/7+312×12.5%=312x7/8+312x0.125=312x(7/8+1/8)=312
12.5%=0.125=1/8
7/8+1/8=1
312x1=312
312÷8/7+312×12.5%=312x7/8+312x0.125=312x(7/8+1/8)=312