□÷○=135… Of the 21, the smallest is______ , then □=______ ．

□÷○=135… Of the 21, the smallest is______ , then □=______ ．

Because the remainder is 21, the minimum divisor is 22, 22 × 135 + 21, = 2970 + 21, = 2991; answer: the minimum divisor is 22, and the value of the divisor is 2991

What divided by what is equal to 5 and 8 is the smallest divisor

9*5+8=53
53/9=5.8

Please fill in the appropriate operation symbols and brackets between the following numbers, so that the results of each formula are equal to 1
1 2 3 4 5 =1
1 2 3 4 5 6 7=1
1 2 3 4 5 6 7 8=1
1 2 3 4 5 6 7 8 9=1

1×（2－3）×（4－5）＝1
1×2÷（3－（4－5）×（6－7））＝1
（1－2）×（3－4）×（5－6）×（7－8）＝1
1×2÷[3-[（4－5）×（（6－7）＋（8－9））]]＝1

Use the four numbers 2, 5, 6 and 10, add add, subtract, multiply, divide and bracket between them, each number can only be used once, so that the result is equal to 24:
Please write at least three different synthesis formulas

(2+10/5)*6
2*6*10/5
Just think of two