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4个回答
展开全部
0.69+3.47-1又3/4
=0.69+3.47-1.75
=4.16-1.75
=2.41
13.74-2又4/5-0.08
=13.74-2.8-0.08
=10.94-0.08
=10.86
1又1/3-0.5+2又1/12
=4/3-1/2+2+1/12
=16/12-6/12+1/12+2
=11/12+2
=2又12分之11
3.75+4.2-7又1/6
=3又3/4+4又1/5-7又1/6
=3+3/4+4+1/5-7-1/6
=(3+4-7)+(3/4+1/5-1/6)
=0+45/60+12/60-10/60
=60分之47
=0.69+3.47-1.75
=4.16-1.75
=2.41
13.74-2又4/5-0.08
=13.74-2.8-0.08
=10.94-0.08
=10.86
1又1/3-0.5+2又1/12
=4/3-1/2+2+1/12
=16/12-6/12+1/12+2
=11/12+2
=2又12分之11
3.75+4.2-7又1/6
=3又3/4+4又1/5-7又1/6
=3+3/4+4+1/5-7-1/6
=(3+4-7)+(3/4+1/5-1/6)
=0+45/60+12/60-10/60
=60分之47
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2015-10-15
展开全部
0.69+3.47-1.75=2.41
13.74-2.8-0.08=10.86
十二分之三五
六十分之四十七
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