Answers

Add 15/84 and 5/30

15/84 + 5/30 is 29/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   15/84 = 15 × 5/84 × 5 = 75/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   5/30 = 5 × 14/30 × 14 = 70/420
4. Add the two like fractions:
   75/420 + 70/420 = 75 + 70/420 = 145/420
5. 145/420 simplified gives 29/84
6. So, 15/84 + 5/30 = 29/84

MathStep (Works offline)

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

Related: ³⁰/₈₄+⁵/₃₀ ¹⁵/₈₄+¹⁰/₃₀ ¹⁵/₈₄+⁵/₆₀ ⁴⁵/₈₄+⁵/₃₀ ¹⁵/₈₄+¹⁵/₃₀ ¹⁵/₈₄+⁵/₉₀ ⁷⁵/₈₄+⁵/₃₀ ¹⁵/₈₄+²⁵/₃₀ ¹⁵/₈₄+³⁵/₃₀

Add Fractions Calculator