1/2+1/4=3/4 4/弊中5÷4-1/10=1/103/4÷1/10=15/2 (1/15+3/49)*15-45/含卜行49=1+45/49-45/谈哗49=1
1/高肢族2+1/4=3/4 4/饥闹5÷4-1/10=1/戚弊103/4÷1/10=15/2 1
1/2+1/4=3/带山如4 4/5÷4-1/10=1/蠢启103/4÷1/唯辩10=15/2
1