Answers

Add 80/60 and 63/80

1^st number: 1 20/60, 2^nd number: 63/80

80/60 + 63/80 is 509/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 60 × 4 = 240,
   80/60 = 80 × 4/60 × 4 = 320/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   63/80 = 63 × 3/80 × 3 = 189/240
4. Add the two like fractions:
   320/240 + 189/240 = 320 + 189/240 = 509/240
5. So, 80/60 + 63/80 = 509/240
   In mixed form: 229/240

MathStep (Works offline)

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

Related:

Add Fractions Calculator