工厂原有42台机床，现有147台。现有的机床数是原来的多少倍？4j*y(x3I9F,_'Z*]-}3]3},o0L0E
算式：提示8r/Z6I,E4j*y(x3I9F,_'Z*]-}3]3},o0L0E
答：现有的机床数是原来的-X6]*c6t)O3p5P5\,w)O8F倍。4j*y(x3I9F,_'Z*]-}3]3},o0L0E