Answers

Add 30/28 and 9/80

1^st number: 1 2/28, 2^nd number: 9/80

30/28 + 9/80 is 663/560.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 80 is 560
2. For the 1st fraction, since 28 × 20 = 560,
   30/28 = 30 × 20/28 × 20 = 600/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   9/80 = 9 × 7/80 × 7 = 63/560
4. Add the two fractions:
   600/560 + 63/560 = 600 + 63/560 = 663/560
5. So, 30/28 + 9/80 = 663/560
   In mixed form: 1103/560

MathStep (Works offline)

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

Related: ⁶⁰/₂₈+⁹/₈₀ ³⁰/₂₈+¹⁸/₈₀ ³⁰/₅₆+⁹/₈₀ ⁹⁰/₂₈+⁹/₈₀ ³⁰/₂₈+²⁷/₈₀ ³⁰/₈₄+⁹/₈₀ ³⁰/₂₈+⁴⁵/₈₀ ³⁰/₂₈+⁶³/₈₀

Add Fractions Calculator