(4又2/7+2又2/11)除以(1又3/7+8/11)要简便

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(4又2/7+2又2/11)除以(1又3/7+8/11)要简便

(4又2/7+2又2/11)除以(1又3/7+8/11)要简便
(4又2/7+2又2/11)除以(1又3/7+8/11)
要简便

(4又2/7+2又2/11)除以(1又3/7+8/11)要简便
4又2/7=30/7
2又2/11=24/11
1又3/7=10/7
所以原式=(30/7+24/11)除以(10/7+8/11)
=3乘以(10/7+8/11)除以(10/7+8/11)
=3

(30/7 + 24/11) / (10/7 + 8/11)
= (330/77 + 168/77) / (110/77 + 56/77)
= (498/77) / (166/77)
= 498/166
= 3