计算题要有详细的过程,都不算很简单.望能写详细
1/3+1/6+1/10+1/15+1/21+1/28
(4/7×10/9×4/11)÷(2/11×2/7×5/9)
[3.5-(7/10+0.96÷16/5)×19/7]+22/7
76×(1/23-1/53)+23×(1/53+1/76)-53×(1/23-1/76)