Answers

Add 84/63 and 1/80

1^st number: 1 21/63, 2^nd number: 1/80

84/63 + 1/80 is 323/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 80 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 63 × 80 = 5040,
   84/63 = 84 × 80/63 × 80 = 6720/5040
3. Likewise, for the 2nd fraction, since 80 × 63 = 5040,
   1/80 = 1 × 63/80 × 63 = 63/5040
4. Add the two like fractions:
   6720/5040 + 63/5040 = 6720 + 63/5040 = 6783/5040
5. 6783/5040 simplified gives 323/240
6. So, 84/63 + 1/80 = 323/240
   In mixed form: 183/240

MathStep (Works offline)

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

Related: ⁸⁴/₆₃+²/₈₀ ⁸⁴/₆₃+³/₈₀ ⁸⁴/₆₃+⁵/₈₀ ⁸⁴/₆₃+⁷/₈₀

Add Fractions Calculator