Question

Rút gọn rồi quy đồng các phân số:

Answer 1

a: -15/90=-1/6=-5/30

120/600=1/5=6/30

-75/150=-1/2=-15/30

b: -54/90=-3/5=-216/360

-180/288=-5/8=-225/360

-60/135=-4/9=-160/360

c: 212121/353535=3/5=42/70

131313/141414=13/14=65/70