简算1/8+5/7-5/7+1/8 7又1/5-(3又3/4-2又4/5) 5.65-(6又3/5-2.35) 1.625+4又6/7+(4有6/7-3又6/7)
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简算1/8+5/7-5/7+1/8 7又1/5-(3又3/4-2又4/5) 5.65-(6又3/5-2.35) 1.625+4又6/7+(4有6/7-3又6/7)
简算1/8+5/7-5/7+1/8 7又1/5-(3又3/4-2又4/5) 5.65-(6又3/5-2.35) 1.625+4又6/7+(4有6/7-3又6/7)
简算1/8+5/7-5/7+1/8 7又1/5-(3又3/4-2又4/5) 5.65-(6又3/5-2.35) 1.625+4又6/7+(4有6/7-3又6/7)
1/8+5/7-5/7+1/8
=(1/8+1/8)+(5/7-5/7)
=1/4+0
=1/4
7又1/5-(3又3/4-2又4/5)
=36/5-15/4+14/5
=(36/5+14/5)-15/4
=10-15/4
=25/4
=六又四分之一
5.65-(6又3/5-2.35)
=5.65-33/5+2.35
=(5.65+2.35)-33/5
=8-33/5
=7/5
=一又五分之一
1.625+4又6/7+(4有6/7-3又6/7)
=1.625+34/7+34/7-27/7
=1.625+(34/7+34/7-27/7)
=12/8+41/7
=84/56+328/56
=412/56
=七又五十六分之二十
=七又十四分之五
1/8+5/7-5/7+1/8
=1/8+1/8
=1/4
7又1/5-(3又3/4-2又4/5)
=7.2-(3.75-2.8)
=7.2-0.95
=6.2+0.05
=6.25
5.65-(6又3/5-2.35)
=5.65-(6.6-2.35)
=5.65+2.35-6.6
=8-6.6=1.4
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1/8+5/7-5/7+1/8
=1/8+1/8
=1/4
7又1/5-(3又3/4-2又4/5)
=7.2-(3.75-2.8)
=7.2-0.95
=6.2+0.05
=6.25
5.65-(6又3/5-2.35)
=5.65-(6.6-2.35)
=5.65+2.35-6.6
=8-6.6=1.4
1.625+4又6/7+(4有6/7-3又6/7)
=1.625+4又6/7+1
=6.5/4+5又6/7
=13/8+5又6/7
=6+5/8+6/7
=6+35/56+48/56
=6+1+27/56
=7又27/56
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