Answers

Add 50/42 and 80/45

1^st number: 1 8/42, 2^nd number: 1 35/45

50/42 + 80/45 is 187/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   50/42 = 50 × 15/42 × 15 = 750/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   80/45 = 80 × 14/45 × 14 = 1120/630
4. Add the two like fractions:
   750/630 + 1120/630 = 750 + 1120/630 = 1870/630
5. 1870/630 simplified gives 187/63
6. So, 50/42 + 80/45 = 187/63
   In mixed form: 261/63

MathStep (Works offline)

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

Related: ⁵⁰/₈₄+⁸⁰/₄₅ ⁵⁰/₄₂+⁸⁰/₉₀

Add Fractions Calculator