1/5÷3+4/5×1/3 1/3÷4/9+1/3+1/4 (4/5-2/3)×25/2 3-3/2×10/21-2/7 1/5÷【(2/3+1/5)×1/13】 24×4/25 【4-(3/4-3/8)】×4/29 26×4/25 1/7+7/8×5/7+3/8 1/4+(1-1/4-1/4) 【1-(1/4+3/8)】÷1/4 13÷25%÷4 2/9+1/2÷4/5+3/8 8/13÷7+1/7×6/13 12/5×(5/6+3/4)+4/5 10÷2/9+1/6×4 7/9÷11/5+2/9×5/11 1/6×2/3÷(4/5-8/15) (1/12+1/2-7/12)÷1/7 44×2/43 |