Mathematics Rate Formulas

  • a / b = c / d => ad = bc

=> a = bc / d

=> b = ad / c

 

  • a / c = b / d ; d / b = c / a ; d / c = b / a

a ± b / b = c ± d / d ;

 

  • a + b  /  a – b = c + d  /  c – d;
    a ± b  /  a = c ± d  /  c ;

 

  • a  /  a ± b = c  /  c ± d;  b  /  a ± b = d  /  c ± d

 

 

 

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