Answers

Add 5/42 and 49/72

5/42 + 49/72 is 403/504.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   5/42 = 5 × 12/42 × 12 = 60/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   49/72 = 49 × 7/72 × 7 = 343/504
4. Add the two like fractions:
   60/504 + 343/504 = 60 + 343/504 = 403/504
5. So, 5/42 + 49/72 = 403/504

MathStep (Works offline)

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

Related: ¹⁰/₄₂+⁴⁹/₇₂ ⁵/₄₂+⁹⁸/₇₂ ⁵/₈₄+⁴⁹/₇₂ ¹⁵/₄₂+⁴⁹/₇₂ ²⁵/₄₂+⁴⁹/₇₂ ³⁵/₄₂+⁴⁹/₇₂

Add Fractions Calculator