Answers

Add 45/28 and 98/80

1^st number: 1 17/28, 2^nd number: 1 18/80

45/28 + 98/80 is 793/280.

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,
   45/28 = 45 × 20/28 × 20 = 900/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   98/80 = 98 × 7/80 × 7 = 686/560
4. Add the two like fractions:
   900/560 + 686/560 = 900 + 686/560 = 1586/560
5. 1586/560 simplified gives 793/280
6. So, 45/28 + 98/80 = 793/280
   In mixed form: 2233/280

MathStep (Works offline)

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

Related: ⁹⁰/₂₈+⁹⁸/₈₀ ⁴⁵/₅₆+⁹⁸/₈₀ ⁴⁵/₈₄+⁹⁸/₈₀

Add Fractions Calculator