求繁分数1/（1/70+1/71+1/72+1/73+1/74）化简后的整数部分。/D8m4Q-J(l1|'i.D,^;u
算式：提示,E6^;A,l9d8{6a2{/V+a)R8w:R(T9c*M/D8m4Q-J(l1|'i.D,^;u
答：化简后的整数部分为(c:z(W'`5|-C。/D8m4Q-J(l1|'i.D,^;u