你好,很高興能幫你解決問題!
1/8+1/4 1/2+1/5 1/3+4/5 4/3+2/5 7/8+1/2 2/3+1/2 3/7+4/5 8/9+1/5 1/4+1/2 3/4+1/5 1/2+4/9 5/8+3/4 2/5+3/8 1/6+1/5 2/5+1/6 3/5+3/4 2/3+2/5 1/7+1/8 5/7+5/8 4/9+5/7
（這些題有些答案是假分數(shù)）
7/8 ﹣1/24/7-1/23/2-1/34/9-1/35/8-1/28/9-3/46/7-4/51/2-3/81/2-3/53/4-1/6
3/7-1/22/5-1/23/4-5/67/9-3/83/5-3/74/5-4/92/7-2/91/8-1/91/4-1/51/3-1/7
（這些題有些答案是負分數(shù))
1/2×4/61/7×2/93/7×4/52/3×5/87/9×6/74/5×3/41/8×7/92/7×1/43/8×4/92/9×3/4
3/8×4/71/8×4/52/9×3/7 4/9×1/72/7×2/54/9×1/87/9×2/53/4×1/9 4/3×3/42/9×9/2
4/5÷3/58/7÷8/94/5÷2/3 2/9÷4/91/8÷6/72/7÷3/4 8/9÷4/54/7÷2/91/9÷2/3 3/4÷6/7
3/8÷5/63/8÷2/53/7÷1/8 1/4÷3/84/7÷2/94/9÷3/71/2÷7/9 4/9÷5/8 2/5÷3/4 5/9÷5/7
好好學數(shù)學啊!
希望能幫到你!