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2016 Math Kangaroo

Problem 2

Problem 2 · 2016 Math Kangaroo Medium
Fractions, Decimals & Percents fraction-to-decimal

The sum 110 + 1100 + 11000 gives

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Answer: C — 1111000
Show hints
Hint 1 of 2
Give all three fractions the same denominator.
Still stuck? Show hint 2 →
Hint 2 of 2
Use 1000 as the common denominator.
Show solution
Approach: common denominator
  1. 1/10 = 100/1000, 1/100 = 10/1000, 1/1000 = 1/1000.
  2. Adding: (100+10+1)/1000 = 111/1000.
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