Answers

Add 90/28 and 30/80

1^st number: 3 6/28, 2^nd number: 30/80

90/28 + 30/80 is 201/56.

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,
   90/28 = 90 × 20/28 × 20 = 1800/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   30/80 = 30 × 7/80 × 7 = 210/560
4. Add the two like fractions:
   1800/560 + 210/560 = 1800 + 210/560 = 2010/560
5. 2010/560 simplified gives 201/56
6. So, 90/28 + 30/80 = 201/56
   In mixed form: 333/56

MathStep (Works offline)

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

Related: ⁹⁰/₂₈+⁶⁰/₈₀ ⁹⁰/₅₆+³⁰/₈₀ ⁹⁰/₂₈+⁹⁰/₈₀ ⁹⁰/₈₄+³⁰/₈₀

Add Fractions Calculator