红花有75朵黄花有60朵,红花比黄花多多少%?
(75 - 60)÷ 60 = 0.25 = 25%
如果是问:红花有75朵黄花有60朵,黄花比红花少多少%?
(75 - 60)÷ 75 = 0.2 = 20%
重点在:和谁比就是除以谁的数目!