甲的5分之2等于乙的百分之50,甲比乙多几分之几,乙比甲多几分之几?
设甲为a,
乙就是:2a/5×2=4a/5
甲比乙多几分之几:
(a-4a/5)÷4a/5
=1/5÷4/5
=1/4
答:甲比乙多4分之1.
乙比甲少几分之几
(a-4a/5)÷a
=1/5
答:乙比甲少5分之1
甲的5分之2等于乙的百分之50,甲比乙多几分之几,乙比甲多几分之几?
设甲为a,
乙就是:2a/5×2=4a/5
甲比乙多几分之几:
(a-4a/5)÷4a/5
=1/5÷4/5
=1/4
答:甲比乙多4分之1.
乙比甲少几分之几
(a-4a/5)÷a
=1/5
答:乙比甲少5分之1