Question

计算题。(能简算的要简算)5/13x4/7x14，(8/9+4/27)ⅹ27？

5/6x5/9+5/9x1/6，2/9-7/16x2/9，17x3/16，13又2/15x3，1/5+2/9x3/10，6.8x1/5+1/5x3.2，1/6x(5-2/3)

Answer 1

举报计算器网页wolframalpha的China地图严重错误。那就用数字帝国

Answer 2

5/13 x 4/7 x 14 = 5/13 x 8 = 40/13
(8/9+4/27) x 27 = 24 + 4 = 28
5/6 x 5/9 + 5/9 x 1/6 = 5/9 x (5/6+1/6) = 5/9
2/9 - 7/16 x 2/9 = 2/9 x (1-7/16) = 2/9 x 9/16 = 1/8
17x3/16 = 51/16
13又2/15x3 = (13+2/15) x 3 = 39又2/5
1/5 + 2/9 x 3/10 = 1/5 + 1/15 = 4/15
6.8 x 1/5 + 1/5 x 3.2 = (6.8+3.2) x 1/5 = 2
1/6 x (5 - 2/3) = 1/6 x 13/3 = 13/18

Answer 3

Answer 4

5/13×4/7x14=5/13X(4/7X14)=5/13X8=40/13.(8/9+4/27)x27=(8/9×27)十(4/27X27)=24+4=28