Answers

Add 45/28 and 27/72

1^st number: 1 17/28, 2^nd number: 27/72

45/28 + 27/72 is 111/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   45/28 = 45 × 18/28 × 18 = 810/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   27/72 = 27 × 7/72 × 7 = 189/504
4. Add the two like fractions:
   810/504 + 189/504 = 810 + 189/504 = 999/504
5. 999/504 simplified gives 111/56
6. So, 45/28 + 27/72 = 111/56
   In mixed form: 155/56

MathStep (Works offline)

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

Related: ⁹⁰/₂₈+²⁷/₇₂ ⁴⁵/₂₈+⁵⁴/₇₂ ⁴⁵/₅₆+²⁷/₇₂ ⁴⁵/₂₈+⁸¹/₇₂ ⁴⁵/₈₄+²⁷/₇₂

Add Fractions Calculator