Answers

Add 42/18 and 80/63

1^st number: 2 6/18, 2^nd number: 1 17/63

42/18 + 80/63 is 227/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   42/18 = 42 × 7/18 × 7 = 294/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   80/63 = 80 × 2/63 × 2 = 160/126
4. Add the two like fractions:
   294/126 + 160/126 = 294 + 160/126 = 454/126
5. 454/126 simplified gives 227/63
6. So, 42/18 + 80/63 = 227/63
   In mixed form: 338/63

MathStep (Works offline)

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

Related: ⁸⁴/₁₈+⁸⁰/₆₃ ⁴²/₃₆+⁸⁰/₆₃ ⁴²/₅₄+⁸⁰/₆₃ ⁴²/₉₀+⁸⁰/₆₃

Add Fractions Calculator