cdoyonnn cdoyonnn
  • 22-09-2016
  • Mathematics
contestada

what is 1/5 +1/4 please help thank you

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Noah11012
Noah11012 Noah11012
  • 22-09-2016
To add fractions, you find the least common multiple.
But, a faster way would be multiply the two denominators together:

x/20 + /20 
How many times does 4 go into 20? 5 times. 5 times 1 equals 5.
5/20 + x/20
How many times does 5 go into 20 4 times? 4 times 1 equals 4.

5/20 + 4/20 = 9/20. This is the final answer because it can't be simplified any more.
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