Answers

Add 20/84 and 45/36

1^st number: 20/84, 2^nd number: 1 9/36

20/84 + 45/36 is 125/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   20/84 = 20 × 3/84 × 3 = 60/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   45/36 = 45 × 7/36 × 7 = 315/252
4. Add the two like fractions:
   60/252 + 315/252 = 60 + 315/252 = 375/252
5. 375/252 simplified gives 125/84
6. So, 20/84 + 45/36 = 125/84
   In mixed form: 141/84

MathStep (Works offline)

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

Related: ⁴⁰/₈₄+⁴⁵/₃₆ ²⁰/₈₄+⁹⁰/₃₆ ²⁰/₈₄+⁴⁵/₇₂ ⁶⁰/₈₄+⁴⁵/₃₆

Add Fractions Calculator