Answers

Add 15/28 and 27/80

15/28 + 27/80 is 489/560.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 28 × 20 = 560,
   15/28 = 15 × 20/28 × 20 = 300/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   27/80 = 27 × 7/80 × 7 = 189/560
4. Add the two like fractions:
   300/560 + 189/560 = 300 + 189/560 = 489/560
5. So, 15/28 + 27/80 = 489/560

MathStep (Works offline)

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

Related: ³⁰/₂₈+²⁷/₈₀ ¹⁵/₂₈+⁵⁴/₈₀ ¹⁵/₅₆+²⁷/₈₀ ⁴⁵/₂₈+²⁷/₈₀ ¹⁵/₂₈+⁸¹/₈₀ ¹⁵/₈₄+²⁷/₈₀ ⁷⁵/₂₈+²⁷/₈₀

Add Fractions Calculator