5/2+9/4-5/1+9/1 15/3+6/5+15/2 11/5+2/1-11/4 21/16-16/3-16/1
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/16 09:07:33
5/2+9/4-5/1+9/1 15/3+6/5+15/2 11/5+2/1-11/4 21/16-16/3-16/1
5/2+9/4-5/1+9/1
=(2/5-1/5)+(4/9+1/9)
=1/5+5/9
=9/45+25/45
=34/45;
15/3+6/5+15/2
=(3/15+2/15)+5/6
=5/15+5/6
=1/3+5/6
=2/6+5/6
=7/6;
11/5+2/1-11/4
=(5/11-4/11)+1/2
=1/11+1/2
=2/22+11/22
=13/22;
21/16-16/3-16/1
=16/21-(1/16+3/16)
=16/21-1/4
=64/84-21/84
=43/84;
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,
=(2/5-1/5)+(4/9+1/9)
=1/5+5/9
=9/45+25/45
=34/45;
15/3+6/5+15/2
=(3/15+2/15)+5/6
=5/15+5/6
=1/3+5/6
=2/6+5/6
=7/6;
11/5+2/1-11/4
=(5/11-4/11)+1/2
=1/11+1/2
=2/22+11/22
=13/22;
21/16-16/3-16/1
=16/21-(1/16+3/16)
=16/21-1/4
=64/84-21/84
=43/84;
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,
5/2+9/4-5/1+9/1 15/3+6/5+15/2 11/5+2/1-11/4 21/16-16/3-16/1
1+1+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22
1+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+2
1+2+3=4+5-3 6+7+8+9=10+11+12-3 13+14+15+16+17=18+19+20+21-3
1+2+3+4+5+6+7+8+9+10+11+12+3+14+15+16+17+18+19+20+21+23+24+2
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19.100=?
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16-23=
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16=?
1+2+3-4+5+6+7+8+9+10+11+12+13+14+15+16简便计算
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19
1+2+3+4-5-6-7-8+9+10+11+12-13-14-15-16+...+1993+1994+1995+19
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17?