1.-4/11-6/11,5/13-8/13,-8/17-(-12/17) 2.-1/4-3/16,-1/4-(-2/5),-5/36-(-5/27) 3.выполните...

Question

1.-4/11-6/11,5/13-8/13,-8/17-(-12/17)
2.-1/4-3/16,-1/4-(-2/5),-5/36-(-5/27)
3.выполните вычитание и упростите ответ 1/28-5/42

Answer 1

-4/11-6/11=-10/11
5/13-8/13=-3/13
-8/17-(-12/17)=4/17
2) -1/4; 3/20;-5/36+5/27=(-15+20)/108=5/108
3)1/28-5/42=(3-10)/84=-7/84=-1/12