1.125*3+125*5+25*3+25 =11002.9999*3+101*11*(101-92) =399963.(23/4-3/4)*(3*6+2) =1004.3/7 × 49/9 - 4/3 =17/35.8/9 × 15/36 + 1/27 =11/276.12× 5/6 – 2/9 ×3 =28/37.8× 5/4 + 1/4 =41/48.6÷ 3/8 – 3/8...寫寫過程啊，謝了，我就選你為最佳一.125*3+125*5+25*3+25 = (3+1)*125+(3+1)*25 =1100 二. 7/8 + （ 1/8 + 1/9 ）= 7/8+1/8+1/9 =10/9 三.(23/4-3/4)*(3*6+2) = 5*20 =100 四. 3/7 × 49/9 - 4/3 = 3/7*49/9-4/3 =17/3 五. 8/9 × 15/36 + 1/27 =11/27 六. 12× 5/6 – 2/9 ×3 =28/3 七. 8× 5/4 + 1/4 =41/4 八. 6÷ 3/8 – 3/8 ÷6 =255/16 九. 4/7 × 5/9 + 3/7 × 5/9 = (4/7+3/7)*5/9 =5/9 十. 5/2 -（ 3/2 + 4/5 ）= 5/2-3/2-4/5 =1/5 沒寫過程的直接四則運算就行了 不難的四則運算 都可以約分母或分子 修改的回答不能分行看起來亂了點~~四則運算還沒學啊分數乘法還沒學？學了，麻煩你寫寫吧，我加懸賞?。。。。。。?！嗚嗚嗚