How do you find the sum of #2.5+2.57+3.1#? Algebra Properties of Real Numbers Addition of Rational Numbers 1 Answer Jumbotron Jun 1, 2018 #7.97# Explanation: #2.3 + 2.57 + 3.1# Simplifying; #(2.0 + 0.3) + (2.0 + 0.57) + (3.0 + 0.1)# Collecting like terms; #(2.0 + 2.0 + 3.0)+ (0.3 + 0.1 + 0.57)# #7.0 + 0.97# #7.97# 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 calculate #18/12 - 7/9#? How do you write 5 into an improper fraction? How do you determine which of the fractions #17/20# or #21/25# is greater and by how much? See all questions in Addition of Rational Numbers Impact of this question 1070 views around the world You can reuse this answer Creative Commons License