来自李厚福的问题
【分数除法简算,38又2/35÷3756÷55/5642又6/7÷631又1/9÷8（1/3+1/4-1/6）÷1/36999又15/28÷3】
分数除法简算,
38又2/35÷37
56÷55/56
42又6/7÷6
31又1/9÷8
（1/3+1/4-1/6）÷1/36
999又15/28÷3
1回答
2020-06-09 12:20
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秦洒钊
38又2/35÷37
=(37+1又2/35）÷37
=37÷37+37/35÷37
=1+1/35
=1又1/35
56÷55/56
=（55+1）×56/55
=55×56/55+1×56/55
=56+1又1/55
=57又1/55
42又6/7÷6
=（42+6/7）÷6
=42÷6+6/7÷6
=7+1/7
=7又1/7
31又1/9÷8
=（32-8/9）÷8
=32÷8-8/9÷8
=4-1/9
=3又8/9
（1/3+1/4-1/6）÷1/36
=（1/3+1/4-1/6）×36
=1/3×36+1/4×36-1/6×36
=12+9-6
=15
999又15/28÷3
=（999+15/28）÷3
=999÷3+15/28÷3
=333+5/28
=333又5/28
2020-06-09 12:23:11