Answers

Add 70/42 and 45/50

1^st number: 1 28/42, 2^nd number: 45/50

70/42 + 45/50 is 77/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 50 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 42 × 25 = 1050,
   70/42 = 70 × 25/42 × 25 = 1750/1050
3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
   45/50 = 45 × 21/50 × 21 = 945/1050
4. Add the two like fractions:
   1750/1050 + 945/1050 = 1750 + 945/1050 = 2695/1050
5. 2695/1050 simplified gives 77/30
6. So, 70/42 + 45/50 = 77/30
   In mixed form: 217/30

MathStep (Works offline)

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

Related: ⁷⁰/₄₂+⁹⁰/₅₀ ⁷⁰/₈₄+⁴⁵/₅₀

Add Fractions Calculator