title: Clojure rounding to decimal places
body: <p>I have strings which represents the decimal values,
  ex: "0.010", "0.0100000" "00.01000"</p>
  
  <p>I want to round them to specified format,
  ex: #.##</p>
  
  <p>In Java we have:</p>
  
  <pre class="lang-java prettyprint-override"><code>public BigDecimal setScale(int newScale, RoundingMode roundingMode) {
      return setScale(newScale, roundingMode.oldMode);
  }
  </code></pre>
  
  <p>What is the best approach to achieve this in Clojure rather than using interop?</p>