Answers

Add 45/42 and 20/60

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

45/42 + 20/60 is 59/42.

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,
   45/42 = 45 × 10/42 × 10 = 450/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   20/60 = 20 × 7/60 × 7 = 140/420
4. Add the two like fractions:
   450/420 + 140/420 = 450 + 140/420 = 590/420
5. 590/420 simplified gives 59/42
6. So, 45/42 + 20/60 = 59/42
   In mixed form: 117/42

MathStep (Works offline)

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

Related: ⁹⁰/₄₂+²⁰/₆₀ ⁴⁵/₄₂+⁴⁰/₆₀ ⁴⁵/₈₄+²⁰/₆₀

Add Fractions Calculator