Answers

Add 10/28 and 15/84

10/28 + 15/84 is 15/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 28 × 3 = 84,
   10/28 = 10 × 3/28 × 3 = 30/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   15/84 = 15 × 1/84 × 1 = 15/84
4. Add the two like fractions:
   30/84 + 15/84 = 30 + 15/84 = 45/84
5. 45/84 simplified gives 15/28
6. So, 10/28 + 15/84 = 15/28

MathStep (Works offline)

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

Related: ²⁰/₂₈+¹⁵/₈₄ ¹⁰/₂₈+³⁰/₈₄ ¹⁰/₅₆+¹⁵/₈₄ ³⁰/₂₈+¹⁵/₈₄ ¹⁰/₂₈+⁴⁵/₈₄ ¹⁰/₈₄+¹⁵/₈₄ ⁵⁰/₂₈+¹⁵/₈₄ ¹⁰/₂₈+⁷⁵/₈₄ ⁷⁰/₂₈+¹⁵/₈₄

Add Fractions Calculator