简便计算:1-1÷6+2/3,(26+26/27)÷13,1÷4/5+1/2x4/5,4/7÷17
简便计算:1-1÷6+2/3,(26+26/27)÷13,1÷4/5+1/2x4/5,4/7÷17+1/17x3/7,17/38x39...
简便计算:1-1÷6+2/3,(26+26/27)÷13,1÷4/5+1/2x4/5,4/7÷17+1/17x3/7,17/38x39
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简便计算:1-1÷6+2/3,(26+26/27)÷13,1÷4/5+1/2x4/5,4/7÷17+1/17x3/7,17/38x39
追答
简便计算:
1-1÷6+2/3
=1-1/6+2/3
=5/6+4/6
=1.5
(26+26/27)÷13
=2+2/27
=56/27
1÷4/5+1/2x4/5
=5/4+2/5
=1.25+0.4
=1.65
4/7÷17+1/17x3/7
=1/17×(4/7+3/7)
=1/17
17/38x39
=17/38×(38+1)
=17+17/38
=17又17/38
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