发布网友 发布时间:2024-10-23 23:31
共1个回答
热心网友 时间:2024-10-29 11:29
=7/8*4/9+7/8+1/8*4/9
=4/9(7/8+1/8)+7/8
=4/9+7/8
=32/72+63/72
=95/72,7,八分之七*九分之五+八分之一*九分之四
=1/8x35/9+1/8x4/9
=1/8x(35/9+4/9)
=1/8x39/9
=39/72,0,九分之二*六分之一+九分之二*六分之五 =1/27+5/27 =6/27 =2/9 八分之七/五+八分之七*五分之四 =7/40+7/10 =7/40+28/40 =35/40 =7/,0,