Answers

Add 80/20 and 27/70

1^st number: 4 0/20, 2^nd number: 27/70

80/20 + 27/70 is 307/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   80/20 = 80 × 7/20 × 7 = 560/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   27/70 = 27 × 2/70 × 2 = 54/140
4. Add the two like fractions:
   560/140 + 54/140 = 560 + 54/140 = 614/140
5. 614/140 simplified gives 307/70
6. So, 80/20 + 27/70 = 307/70
   In mixed form: 427/70

MathStep (Works offline)

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

Related: ⁸⁰/₂₀+⁵⁴/₇₀ ⁸⁰/₄₀+²⁷/₇₀ ⁸⁰/₂₀+⁸¹/₇₀ ⁸⁰/₆₀+²⁷/₇₀

Add Fractions Calculator