SOLUTION: I need help with these: 10/9÷21/20 -10/3*(5/6-4/5) 3x/2-5/4 (-2/3)^2÷4/15

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: I need help with these: 10/9÷21/20 -10/3*(5/6-4/5) 3x/2-5/4 (-2/3)^2÷4/15      Log On


   

Question 686108: I need help with these:
10/9÷21/20
-10/3*(5/6-4/5)
3x/2-5/4
(-2/3)^2÷4/15
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
10/9÷21/20
%2810%2F9%29%2F%2821%2F20%29+=+%2810%2F9%29%2820%2F21%29+=+200%2F189
...
-10/3*(5/6-4/5)

...
3x/2-5/4
%283%2F2%29x+-+5%2F4 ==> cannot subtract unlike terms
...
(-2/3)^2÷4/15
%28-2%2F3%29%5E2%2F%284%2F15%29+=+%284%2F9%29%2815%2F4%29+=+5%2F3
..............................
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