Answers

Add 20/42 and 63/60

1^st number: 20/42, 2^nd number: 1 3/60

20/42 + 63/60 is 641/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   20/42 = 20 × 10/42 × 10 = 200/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   63/60 = 63 × 7/60 × 7 = 441/420
4. Add the two like fractions:
   200/420 + 441/420 = 200 + 441/420 = 641/420
5. So, 20/42 + 63/60 = 641/420
   In mixed form: 1221/420

MathStep (Works offline)

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

Related: ⁴⁰/₄₂+⁶³/₆₀ ²⁰/₈₄+⁶³/₆₀ ⁶⁰/₄₂+⁶³/₆₀

Add Fractions Calculator