(8分之7+16分之3)x(9分之5+3分之1) (3分之1+12分之11-4分之3)除24分之1 6分之5除4分之3-9分之2x4分之3
1个回答
2011-11-30
展开全部
(7/8+3/16)*(5/9+1/3)
=(14/16+3/16)*(5/9+3/9)
=17/16*8/9
=17/2*1/9(16和8约分)
=17/18
(1/3+11/12-3/4)/ 1/24
=(4/12+11/12-9/12)/ 1/24
=1/2 *24(除以1/24就是乘以它的倒数)(这是六年级学的)
=12
5/6 / 3/4-2/9*3/4
=5/6*4/3-1/3*1/2(除以3/4就是乘以它的倒数4/3)(这是六年级学的)
=5/3*2/3-1/6
=10/9-1/6
=60/54-9/54
=51/54
=17/18
1 / {(3/4+1/3)/ 5/8}
=1 / {(9/12+4/12)/ 5/8}
=1 / {13/12*8/5}
=1 / 26/15
=1*15/26
=15/26
=(14/16+3/16)*(5/9+3/9)
=17/16*8/9
=17/2*1/9(16和8约分)
=17/18
(1/3+11/12-3/4)/ 1/24
=(4/12+11/12-9/12)/ 1/24
=1/2 *24(除以1/24就是乘以它的倒数)(这是六年级学的)
=12
5/6 / 3/4-2/9*3/4
=5/6*4/3-1/3*1/2(除以3/4就是乘以它的倒数4/3)(这是六年级学的)
=5/3*2/3-1/6
=10/9-1/6
=60/54-9/54
=51/54
=17/18
1 / {(3/4+1/3)/ 5/8}
=1 / {(9/12+4/12)/ 5/8}
=1 / {13/12*8/5}
=1 / 26/15
=1*15/26
=15/26
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询