5/9+7/8+4/9+1/8 3×(2/15+1/12)-2/5
2-6/13÷9/26-2/3 5/3÷4/5-5/4×2/3
3/2÷[5/6×(1-1/3)] 7/9÷[(4.5-5%×70)÷9/7]
13/10+17/4+37/10+3/4 (1/2+1/3+1/6)×24
8.75-(15/4+1.875)67/7-5.89+3/7-4.11
0.625×27+3/8×27+2735.2×1/9+35.2×8/9
(7/8+13/16)÷3/16 1/5÷[(2/3+1/5)×1/13]
3-3/2×10/21-2/7 8/9÷7+1/7×1/9