Question

Giúp mình 12 câu này nhé đúng nhé mình tick

Answer 1

a: =-10/13-3/13+5/17+12/17-11/20=-11/20

b: =9/4-10/12+11/12=10/12=5/6

c: =(-7+8)/15=1/15

d: =-9/15+10/15=1/15

e: \(=\dfrac{-10}{36}+\dfrac{20}{35}-\dfrac{11}{36}=\dfrac{-42}{36}=-\dfrac{7}{6}\)

f: \(=\dfrac{-7}{21}+\dfrac{8}{24}=\dfrac{1}{3}-\dfrac{1}{3}=0\)