Xiaomei and Xiaoli are both stamp collectors. Xiaoli has 90 more stamps than Xiaomei, and Xiaomei has 2 / 5 fewer stamps than Xiaoli. How many stamps do Xiaomei and Xiaoli have
Xiaoliyou: 90 △ 2 / 5 = 225
Xiaomeiyou: 225-90 = 135
Xiaoliyou: 90 △ 2 / 5 = 225
Xiaomeiyou: 225-90 = 135