Answers

Add 70/40 and 63/80

1^st number: 1 30/40, 2^nd number: 63/80

70/40 + 63/80 is 203/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   70/40 = 70 × 2/40 × 2 = 140/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
4. Add the two like fractions:
   140/80 + 63/80 = 140 + 63/80 = 203/80
5. So, 70/40 + 63/80 = 203/80
   In mixed form: 243/80

MathStep (Works offline)

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

Related: ⁷⁰/₈₀+⁶³/₈₀

Add Fractions Calculator