Answers

Add 6/4 and 9/80

1^st number: 1 2/4, 2^nd number: 9/80

6/4 + 9/80 is 129/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   6/4 = 6 × 20/4 × 20 = 120/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   9/80 = 9 × 1/80 × 1 = 9/80
4. Add the two like fractions:
   120/80 + 9/80 = 120 + 9/80 = 129/80
5. So, 6/4 + 9/80 = 129/80
   In mixed form: 149/80

MathStep (Works offline)

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

Related: ¹²/₄+⁹/₈₀ ⁶/₄+¹⁸/₈₀ ⁶/₈+⁹/₈₀ ¹⁸/₄+⁹/₈₀ ⁶/₄+²⁷/₈₀ ⁶/₁₂+⁹/₈₀ ³⁰/₄+⁹/₈₀ ⁶/₄+⁴⁵/₈₀ ⁶/₂₀+⁹/₈₀ ⁴²/₄+⁹/₈₀ ⁶/₄+⁶³/₈₀ ⁶/₂₈+⁹/₈₀

Add Fractions Calculator