Answers

Add 80/10 and 42/80

1^st number: 8 0/10, 2^nd number: 42/80

80/10 + 42/80 is 341/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 10 × 8 = 80,
   80/10 = 80 × 8/10 × 8 = 640/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   42/80 = 42 × 1/80 × 1 = 42/80
4. Add the two like fractions:
   640/80 + 42/80 = 640 + 42/80 = 682/80
5. 682/80 simplified gives 341/40
6. So, 80/10 + 42/80 = 341/40
   In mixed form: 821/40

MathStep (Works offline)

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

Related: ⁸⁰/₁₀+⁸⁴/₈₀ ⁸⁰/₂₀+⁴²/₈₀ ⁸⁰/₃₀+⁴²/₈₀ ⁸⁰/₅₀+⁴²/₈₀ ⁸⁰/₇₀+⁴²/₈₀

Add Fractions Calculator