How do you simplify 45+29? Algebra Properties of Real Numbers Addition of Rational Numbers 1 Answer Suren Abreu Nov 23, 2016 4645 or 1145 Explanation: 45+29 The LCM (Lowest Common Multiple) of 5 and 9 is 45. (4×9)+(2×5)45 36+1045 4645 or 1145 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 1123 into an improper fraction? How do you add 417+27? How do you add 35+28? How do you change fractions into decimals? How do you find the sum of 2.5+2.57+3.1? How do you calculate 1812−79? How do you write 5 into an improper fraction? See all questions in Addition of Rational Numbers Impact of this question 3848 views around the world You can reuse this answer Creative Commons License