Answers

Add 80/8 and 70/42

1^st number: 10 0/8, 2^nd number: 1 28/42

80/8 + 70/42 is 35/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 42 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 8 × 21 = 168,
   80/8 = 80 × 21/8 × 21 = 1680/168
3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
   70/42 = 70 × 4/42 × 4 = 280/168
4. Add the two like fractions:
   1680/168 + 280/168 = 1680 + 280/168 = 1960/168
5. 1960/168 simplified gives 35/3
6. So, 80/8 + 70/42 = 35/3
   In mixed form: 112/3

MathStep (Works offline)

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

Related: ⁸⁰/₁₆+⁷⁰/₄₂ ⁸⁰/₈+⁷⁰/₈₄ ⁸⁰/₂₄+⁷⁰/₄₂ ⁸⁰/₄₀+⁷⁰/₄₂ ⁸⁰/₅₆+⁷⁰/₄₂

Add Fractions Calculator