Question

分数加减乘除法各20道

只要两数相乘除或加减就行，不要高于两数，不要答案

Answer 1

你好，很高兴能帮你解决问题！
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
（这些题有些答案是假分数）
7/8 ﹣1/2 4/7-1/2 3/2-1/3 4/9-1/3 5/8-1/2 8/9-3/4 6/7-4/5 1/2-3/8 1/2-3/5 3/4-1/6
3/7-1/2 2/5-1/2 3/4-5/6 7/9-3/8 3/5-3/7 4/5-4/9 2/7-2/9 1/8-1/9 1/4-1/5 1/3-1/7
（这些题有些答案是负分数)
1/2×4/6 1/7×2/9 3/7×4/5 2/3×5/8 7/9×6/7 4/5×3/4 1/8×7/9 2/7×1/4 3/8×4/9 2/9×3/4
3/8×4/7 1/8×4/5 2/9×3/7 4/9×1/7 2/7×2/5 4/9×1/8 7/9×2/5 3/4×1/9 4/3×3/4 2/9×9/2
4/5÷3/5 8/7÷8/9 4/5÷2/3 2/9÷4/9 1/8÷6/7 2/7÷3/4 8/9÷4/5 4/7÷2/9 1/9÷2/3 3/4÷6/7
3/8÷5/6 3/8÷2/5 3/7÷1/8 1/4÷3/8 4/7÷2/9 4/9÷3/7 1/2÷7/9 4/9÷5/8 2/5÷3/4 5/9÷5/7
好好学数学啊！
希望能帮到你！

Answer 2

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
（这些题有些答案是假分数）
7/8 ﹣1/2 4/7-1/2 3/2-1/3 4/9-1/3 5/8-1/2 8/9-3/4 6/7-4/5 1/2-3/8 1/2-3/5 3/4-1/6
3/7-1/2 2/5-1/2 3/4-5/6 7/9-3/8 3/5-3/7 4/5-4/9 2/7-2/9 1/8-1/9 1/4-1/5 1/3-1/7
（这些题有些答案是负分数)
1/2×4/6 1/7×2/9 3/7×4/5 2/3×5/8 7/9×6/7 4/5×3/4 1/8×7/9 2/7×1/4 3/8×4/9 2/9×3/4
3/8×4/7 1/8×4/5 2/9×3/7 4/9×1/7 2/7×2/5 4/9×1/8 7/9×2/5 3/4×1/9 4/3×3/4 2/9×9/2
4/5÷3/5 8/7÷8/9 4/5÷2/3 2/9÷4/9 1/8÷6/7 2/7÷3/4 8/9÷4/5 4/7÷2/9 1/9÷2/3 3/4÷6/7
3/8÷5/6 3/8÷2/5 3/7÷1/8 1/4÷3/8 4/7÷2/9 4/9÷3/7 1/2÷7/9 4/9÷5/8 2/5÷3/4 5/9÷5/7

Answer 3

4/9×3= 5÷1/3 = 1/2÷1/3 =
2/7×3/9 ÷2/7 = 21/25÷42=
4/5×3/4 = 8.7×0.2= 4×0.25=
1/7×14= 2/3÷5/6= 1.25×8=
3/5÷5/8= 6/7×3/2= 6×8.8=
4/11÷4= 4/9×3/8= 5/3÷5=
0÷8/3= 4/7 －2/3= 2/7×2 ＝
41/12×4= 4÷3/16= 12÷9/4 =
75/8 ÷5= 12×16/9 ＝ 2/3×3＝
8÷9/4 ＝ 5/3÷3/5 ＝ 4/5×5/8 ＝
7/9×9/7 ＝

Answer 4

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

7/8 ﹣1/2 4/7-1/2 3/2-1/3 4/9-1/3 5/8-1/2 8/9-3/4 6/7-4/5 1/2-3/8 1/2-3/5 3/4-1/6
3/7-1/2 2/5-1/2 3/4-5/6 7/9-3/8 3/5-3/7 4/5-4/9 2/7-2/9 1/8-1/9 1/4-1/5 1/3-1/7

1/2×4/6 1/7×2/9 3/7×4/5 2/3×5/8 7/9×6/7 4/5×3/4 1/8×7/9 2/7×1/4 3/8×4/9 2/9×3/4
3/8×4/7 1/8×4/5 2/9×3/7 4/9×1/7 2/7×2/5 4/9×1/8 7/9×2/5 3/4×1/9 4/3×3/4 2/9×9/2
4/5÷3/5 8/7÷8/9 4/5÷2/3 2/9÷4/9 1/8÷6/7 2/7÷3/4 8/9÷4/5 4/7÷2/9 1/9÷2/3 3/4÷6/7
3/8÷5/6 3/8÷2/5 3/7÷1/8 1/4÷3/8 4/7÷2/9 4/9÷3/7 1/2÷7/9 4/9÷5/8 2/5÷3/4 5/9÷5/7