(-60)/(1/3-1/4+1/5-1/6) please

(-60)/(1/3-1/4+1/5-1/6) please
(-60)/(1/3-1/4+1/5-1/6) please

(-60)/(1/3-1/4+1/5-1/6) please
原式=(-60)÷(20/60-15/60+12/60-10/60)
=(-60)÷[(20-15+12-10)/60]
=(-60)÷7/60
=(-60)×60/7
=-(60×60/7)
=-3600/7

- 3600/7 .

答案算出来是-3600/7同志啊，挺快的，可是你能给出过程和结果的带分数吗？给的话我提高悬赏

-1/60÷(1/3+1/4+1/5) (-1/3+1/4-1/5)÷(-1/60)计算 计算(2/1+3/1-4/1+5/1)*60 (-60)/(1/3-1/4+1/5-1/6) please 简便计算：1/2+(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+...+(1/60+2/60+...+59/60) 1/2+(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+...+(1/60+2/60+.+59/60)=? 数学题在线解答1/2+1/3+2/3+1/4+2/4+3/4+1/5+2/5+3/5+4/5+.+1/60+.+59/60 计算：1/2+1/3+2/3+1/4+2/4+3/4+1/5+2/5+3/5+4/5+.+1/60+.+59/60= 1/2+1/3+2/3+1/4+2/4+3/4+1/5+2/5+3/5+4/5+...+1/60+...59/60怎么做 (2/1+3/1+4/1+...+60/1)+(3/2+4/2.+60/2)+(4/3+5/3...+60/3)+(59/58+60/58）+60/59=? (1+1/3+1/5+1/10+1/15+1/30)/(1/2+1/4+1/6+1/12+1/20+1/60)(用简算) (1+1/3+1/5+1/10+1/15+1/30)/(1/2+1/4+1/6+1/12+1/20+1/60)=​?简便计算方法 (1+1/3+1/5+1/10+1/15+1/30)/(1/2+1/4+1/6+1/12+1/20+1/60)=​?简算 (1/2+1/4+1/6+1/10+1/12+1/60)/(1+1/3+1/5+1/10+1/15+1/30) 2/1+3/1+3/2+4/1+4/2+4/3+5/1+5/2+5/3+5/4...+60/1+...60/59=? (1+1/2+1/3+..+1/60)+(2/3+2/4+..+2/60)+(3/4+3/5+..+3/60)+..+(58/59+58/60)+59/60 （1+1/2+1/3+...+1/60）+(2/3+2/4+...+2/60)+(3/4+3/5+...+3/60)+...+(58/59+58/60)+59/60=? 1/8+3/16 1/4-1/16 8-1分之8 6 6-60% 3/4×1/3÷5 1/2-1/5 1/2+1/10-1/5 3/5-(1/15+1/3)