Question

Các pạn ơi, giúp mik với

Answer 1

a: =8/5-2/3=24/15-10/15=14/15

b: =3/5-1/3=9/15-5/15=4/15

c: =1/3-1/5=2/15

d: =6/7-4/9=54/63-28/63=26/63

Answer 2

a.8/5 - 18/27 = 8/5 - 2/3 = 24/15 = 14/15

b. 12/20 - 6/18 = 3/5 - 1/3 = 9/15= 4/15

c. 8/24 - 5/25 = 1/3 - 1/5 = 5/15 - 3/15 = 2/15

d. 18/21 - 12/27 = 6/7 - 4/9 = 54/63 - 28/63 = 26/63