t co"><span class="r-pr">#&gt;</span> 2 "(3/14)a+(1/28)b+(5/28)b+(3/7)c"  "(1/14)b"        </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3 "(3/7)a+(5/56)b+(5/28)b+(15/28)c" "(1/14)a+(5/28)b"</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4 "(18/35)a+(1/7)b+(1/7)b+(4/7)c"   "(8/35)a+(2/7)b" </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 5 "(3/7)a+(5/28)b+(5/56)b+(15/28)c" "(3/7)a+(5/14)b" </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 6 "(3/14)a