分数简便计算题
展开全部
1.3/4*1/9+1/4*1/9
2.5/8*2/7+5/8*5/7
3.101*1/5-1/5*21
4.31*5*6-5/6
5.8*4/5+8*11/5
6.6*(1/2+2/3)
7.(3/5-1*2)*5/3
8.12*(2*3+1/6)
9.4/7*5/9+3/7*5/9
10.(3+1)*5/6
11.5/2*(3/2+4/5)
12.1/6*(2/3+3/4)
13.7/72*(1/8+1/9)
14.9*5/6+5/6
15.12*5/6-5/6*3
2.5/8*2/7+5/8*5/7
3.101*1/5-1/5*21
4.31*5*6-5/6
5.8*4/5+8*11/5
6.6*(1/2+2/3)
7.(3/5-1*2)*5/3
8.12*(2*3+1/6)
9.4/7*5/9+3/7*5/9
10.(3+1)*5/6
11.5/2*(3/2+4/5)
12.1/6*(2/3+3/4)
13.7/72*(1/8+1/9)
14.9*5/6+5/6
15.12*5/6-5/6*3
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