Answers

Add 81/49 and 20/45

1^st number: 1 32/49, 2^nd number: 20/45

81/49 + 20/45 is 925/441.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 45 is 2205
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2205
2. For the 1st fraction, since 49 × 45 = 2205,
   81/49 = 81 × 45/49 × 45 = 3645/2205
3. Likewise, for the 2nd fraction, since 45 × 49 = 2205,
   20/45 = 20 × 49/45 × 49 = 980/2205
4. Add the two like fractions:
   3645/2205 + 980/2205 = 3645 + 980/2205 = 4625/2205
5. 4625/2205 simplified gives 925/441
6. So, 81/49 + 20/45 = 925/441
   In mixed form: 243/441

MathStep (Works offline)

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

Related: ⁸¹/₄₉+⁴⁰/₄₅ ⁸¹/₉₈+²⁰/₄₅ ⁸¹/₄₉+²⁰/₉₀ ⁸¹/₄₉+⁶⁰/₄₅

Add Fractions Calculator