0.375✖️七分之五加七分之一乘八分之三加八分之三除以七怎么算？0.375x5/7+1/7x3/8+3/8÷7=3/8x5/7+3/8x1/7+3/8x1/7=3/8x（5/7+1/7+1/7）=3/8x1=3/8
