Answers

Add 84/70 and 80/84

1^st number: 1 14/70, 2^nd number: 80/84

84/70 + 80/84 is 226/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   84/70 = 84 × 6/70 × 6 = 504/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   80/84 = 80 × 5/84 × 5 = 400/420
4. Add the two like fractions:
   504/420 + 400/420 = 504 + 400/420 = 904/420
5. 904/420 simplified gives 226/105
6. So, 84/70 + 80/84 = 226/105
   In mixed form: 216/105

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