Question

1/3+1/6+4/3+2/3+5/6

5/7+×/35=4/5

×+2/5=1/2

2/3-×=8/21

 

Answer 1

x+2/5=1/2

x.      =1/2-2/5

x.      =3/10

d)2/3-x=8/21

         x=2/3-8/21

         x=8/21. ( cho mik đi bạn)

Answer 2

a) 1/3+1/6+4/3+2/3+5/6

= 2/6+1/6+8/6+4/6+5/6

= 20/6=10/3 

b)5/7+x/35=4/5

          x/35=4/5-5/7

          x/35=8/35

        => x. =8 ( cho mik đi rồi mik lm tiếp cho)

Answer 3

1/3+1/6+4/3+2/3+5/6=(1/3+2/3+4/3)+(1/6+5/6)=1+1=2

5/7+×/35=4/5

=>x/35=4/5-5/7=28/35-25/35=10/35

=>x=10

×+2/5=1/2

=>x=1/2-2/5=5/10-4/10=1/10

2/3-x=8/21

=>x=2/3-8/21=14/21-8/21=6/21=2/7

Answer 4

bn Mai Ngọc ơi! bn tính nhầm rùi đó aq

Answer 5

xin lỗi nha...chỗ 1/5-2/5=1/10 nhé