In a division formula, the divisor is reduced by four times. In order to keep the quotient constant, the divisor must ()

In a division formula, the divisor is reduced by four times. In order to keep the quotient constant, the divisor must ()

In a division formula, the divisor is reduced by four times. In order to keep the quotient constant, the divisor must be reduced by four times

In the division formula, the divisor is reduced by 20 times, the divisor is increased by 5 times, and the quotient ()

In the division formula, the divisor is reduced by 20 times, the divisor is increased by 5 times, and the quotient is reduced by 100 times
a÷b=c
(a÷20)÷(bx5)=a÷b÷20÷5=c÷100