负6又3/5减负5又1/7减4又2/5加负8又1/7
=-6-3/5-(-5-1/7)-4-2/5-8-1/7
=(-6+5-4-8)+(-3/5-2/5+1/7-1/7)
=-13-1
=-14;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,