个6相加的和是126;把36平均分成4份,每份是 .
: =1= 12 ÷10= %
4:5=24÷ 3.5: =5:7.
2:5=24: = :15== %= 成= 折.
: =1.4=70/ = %
=60%= ÷20=3: = (小数)