equipment and energy .                  | 2013    | 2012    | 2011   
sales            | $ 451.1 | $ 420.1 | $ 400.6
operating income | 65.5    | 44.6    | 62.8    2013 vs .2012 sales of $ 451.1 increased primarily from higher lng project activity .operating income of $ 65.5 increased from the higher lng project activity .the sales backlog for the equipment business at 30 september 2013 was $ 402 , compared to $ 450 at 30 september 2012 .it is expected that approximately $ 250 of the backlog will be completed during 2014 .2012 vs .2011 sales of $ 420.1 increased 5% ( 5 % ) , or $ 19.5 , reflecting higher air separation unit ( asu ) activity .operating income of $ 44.6 decreased 29% ( 29 % ) , or $ 18.2 , reflecting lower lng project activity .the sales backlog for the equipment business at 30 september 2012 was $ 450 , compared to $ 334 at 30 september 2011 .other operating income ( loss ) primarily includes other expense and income that cannot be directly associated with the business segments , including foreign exchange gains and losses .also included are lifo inventory valuation adjustments , as the business segments use fifo , and the lifo pool valuation adjustments are not allocated to the business segments .other also included stranded costs resulting from discontinued operations , as these costs were not reallocated to the businesses in 2012 .2013 vs .2012 other operating loss was $ 4.7 , compared to $ 6.6 in the prior year .the current year includes an unfavorable lifo adjustment versus the prior year of $ 11 .the prior year loss included stranded costs from discontinued operations of $ 10 .2012 vs .2011 other operating loss was $ 6.6 , compared to $ 39.3 in the prior year , primarily due to a reduction in stranded costs , a decrease in the lifo adjustment as a result of decreases in inventory values , and favorable foreign exchange , partially offset by gains on asset sales in the prior year. .
Question: in 2013, what was the ratio of sales to operating income?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
equipment and energy .                  | 2013    | 2012    | 2011   
sales            | $ 451.1 | $ 420.1 | $ 400.6
operating income | 65.5    | 44.6    | 62.8    2013 vs .2012 sales of $ 451.1 increased primarily from higher lng project activity .operating income of $ 65.5 increased from the higher lng project activity .the sales backlog for the equipment business at 30 september 2013 was $ 402 , compared to $ 450 at 30 september 2012 .it is expected that approximately $ 250 of the backlog will be completed during 2014 .2012 vs .2011 sales of $ 420.1 increased 5% ( 5 % ) , or $ 19.5 , reflecting higher air separation unit ( asu ) activity .operating income of $ 44.6 decreased 29% ( 29 % ) , or $ 18.2 , reflecting lower lng project activity .the sales backlog for the equipment business at 30 september 2012 was $ 450 , compared to $ 334 at 30 september 2011 .other operating income ( loss ) primarily includes other expense and income that cannot be directly associated with the business segments , including foreign exchange gains and losses .also included are lifo inventory valuation adjustments , as the business segments use fifo , and the lifo pool valuation adjustments are not allocated to the business segments .other also included stranded costs resulting from discontinued operations , as these costs were not reallocated to the businesses in 2012 .2013 vs .2012 other operating loss was $ 4.7 , compared to $ 6.6 in the prior year .the current year includes an unfavorable lifo adjustment versus the prior year of $ 11 .the prior year loss included stranded costs from discontinued operations of $ 10 .2012 vs .2011 other operating loss was $ 6.6 , compared to $ 39.3 in the prior year , primarily due to a reduction in stranded costs , a decrease in the lifo adjustment as a result of decreases in inventory values , and favorable foreign exchange , partially offset by gains on asset sales in the prior year. .
Question: in 2013, what was the ratio of sales to operating income?
