What is the sum #10/19+3/19#? Algebra Properties of Real Numbers Addition of Rational Numbers 1 Answer Alan P. Nov 9, 2016 #10/19 + 3/19 = color(green)(13/19)# Explanation: #10# of anything plus #3# of the same thing #=13# of that thing: #color(white)("XXX")10 " elephants" + 3 " elephants" = 13 " elephants"# #color(white)("XXX")10 " nineteenths" + 3 " nineteenths" = 13" nineteenths"# ...or maybe a picture will help: Answer link Related questions How do you add rational numbers? How do you write fractions with a common denominator? How do you write mixed fractions into improper fractions? How do you write #11 2/3# into an improper fraction? How do you add #4 1/7 + 2/7#? How do you add #3/5+2/8#? How do you change fractions into decimals? How do you find the sum of #2.5+2.57+3.1#? How do you calculate #18/12 - 7/9#? How do you write 5 into an improper fraction? See all questions in Addition of Rational Numbers Impact of this question 2417 views around the world You can reuse this answer Creative Commons License