100千克稻谷可碾米75千克,一千克稻谷可碾米750千克100:75=1000:750
100千克稻谷可碾米70千克;1千克稻谷能碾米0.7千克、56千克稻谷能碾米39.2千克 。
.100千克稻谷可碾米70千克;1千克稻谷能碾米0.7千克、5100千克稻谷可碾米70千克;1千克稻谷能碾米0.7千克、56千克稻谷能碾米39.2千克 6千克稻谷能碾米39.2千克