Question 1187534
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A farmer {{{highlight(cross(use))}}} <U>uses</U> 9/16 of his farm for maize and 4/21 for root crops, what fraction of the farm is used for other crops?
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<pre>
    {{{1 - 9/16 - 4/21}}}  is for other crops.


    {{{1 - 9/16 - 4/21}}} =  {{{(16*21)/(16*21) - (9*21)/(16*21) - (4*16)/(16*21)}}} = {{{(16*21 - 9*21 - 4*16)/(16*21)}}} = {{{83/336}}}.    <U>ANSWER</U>
</pre>

Solved, and all necessary explanations are given.