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math oder of operation

Mathematics
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I have 2 different problems first is" (-2/3)exponent 2 -(5/21) divide 15/7 " and another one" 5/2 x (3/2) exponet 2 + (-1/2) exponent 3".   hope you can understand the problems

Oct 6th, 2014

(-2/3)^2-5/21 divide 15/7

4/9-5/21 = 28/63-15/63 =13/63

13/63 divide 15/7 = 13/63*7/15 =13/(9*15) =13/135

5/2 * (3/2)^2+(-1/2)^3 = 5/2*9/4-1/8 = 45/8-1/8 =44/8 =11/2 =5.5

Oct 6th, 2014

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Oct 6th, 2014
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Oct 6th, 2014
Dec 3rd, 2016
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