5/9+7/8+4/9+1/8
3×(2/15+1/12)-2/5
2-6/13÷9/26-2/3
(7/8+13/16)÷13/16
1/5÷[(2/3+1/5)×1/13]
3-3/2×10/21-2/7
8/9÷7+1/7×1/9
(11-2/3×3/2)÷15
(84÷4-0.01)×(1-1/4)
5/3÷4/5-5/4×2/3
5/8×0.25+0.375×1/4+1/4
3/2÷[5/6×(1-1/3)]
7/9÷[(4.5-5%×70)÷9/7]
(1/12+1/8)×24 3/4×99+0.75
2-6/13÷9/26-2/3
5/8÷[1/3+(5/6-3/4)]