分母不大于50，分子不大于5的最简正分数有多少个？2Y7\1U5r.b']3Q'C.A.K8C(a
算式：提示'M-K5o'G*P6Y*Y,@2Q.u2Y7\1U5r.b']3Q'C.A.K8C(a
答：分母不大于50，分子不大于5的最简正分数有5T6i'H+m9n;G个。2Y7\1U5r.b']3Q'C.A.K8C(a