5/9+7/8+4/9+1/8 3×(2/15+1/12)-2/5 2-6/13÷9/26-2/35/3÷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+2023.2×1/9+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 |