121% (Multiply a decimal by 100 to change it to a percentage)
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0.55 percent of 220 = 1210.55% of 220= 55% * 220= 0.55 * 220= 121
Simply move the decimal to the right two places: 1.21 = 121%
121
The LCM of 11 and 121 is 121. Since 11 is a factor of 121, 121 is automatically the LCM of the set.
-1.21 = -121/100 and reduces to: -1 21/100