第1个回答 2008-10-13
3/5×(20+5/6)=3/5 ×20+3/5×5/6=12+1/2=12又1/2
(35+5/7)÷5=35÷5+5/7÷5＝7+1/7＝7又1/7
63×37/62=（62+1）×37/62＝62×37/62+1×37/62＝37+37/62＝37又37/62
第2个回答 2008-10-13
1.原式=3/5×20+3/5×5/6=12+1/2=12.5
2.原式=35×1/5+5/7×1/5=7+1/7=7又1/7
3.原式=(62+1)×37/62
=62×37/62+1×37/62
=37+37/62
=37又37/62
第3个回答 2008-10-13
12.5
7又7分之一
37.597
第4个回答 2008-10-13
12又1/2
7又1/7
(62+1)×37/62=62又32/63
第5个回答 2008-10-13
3/5×(20+5/6)=25/2
(35+5/7)÷5=50/7
63×37/62=1701/62本回答被网友采纳