乙数是甲数的87.5%,甲数:乙数=_,如果乙数是56,甲数是_.
问题描述:
乙数是甲数的87.5%,甲数:乙数=______,如果乙数是56,甲数是______.
答
(1)1:87.5%,
=1000:875,
=8:7;
(2)56÷87.5%=64;
故答案为:8:7,64.