Answers

Add 98/45 and 4/80

1^st number: 2 8/45, 2^nd number: 4/80

98/45 + 4/80 is 401/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   98/45 = 98 × 16/45 × 16 = 1568/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   4/80 = 4 × 9/80 × 9 = 36/720
4. Add the two like fractions:
   1568/720 + 36/720 = 1568 + 36/720 = 1604/720
5. 1604/720 simplified gives 401/180
6. So, 98/45 + 4/80 = 401/180
   In mixed form: 241/180

MathStep (Works offline)

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

Related: ⁹⁸/₄₅+⁸/₈₀ ⁹⁸/₉₀+⁴/₈₀ ⁹⁸/₄₅+¹²/₈₀ ⁹⁸/₄₅+²⁰/₈₀ ⁹⁸/₄₅+²⁸/₈₀

Add Fractions Calculator