Answers

Add 70/45 and 1/20

1^st number: 1 25/45, 2^nd number: 1/20

70/45 + 1/20 is 289/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 45 × 4 = 180,
   70/45 = 70 × 4/45 × 4 = 280/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   1/20 = 1 × 9/20 × 9 = 9/180
4. Add the two like fractions:
   280/180 + 9/180 = 280 + 9/180 = 289/180
5. So, 70/45 + 1/20 = 289/180
   In mixed form: 1109/180

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁰/₄₅+²/₂₀ ⁷⁰/₉₀+¹/₂₀ ⁷⁰/₄₅+¹/₄₀ ⁷⁰/₄₅+³/₂₀ ⁷⁰/₄₅+¹/₆₀ ⁷⁰/₄₅+⁵/₂₀ ⁷⁰/₄₅+⁷/₂₀

Add Fractions Calculator