Answers

Add 80/18 and 27/72

1^st number: 4 8/18, 2^nd number: 27/72

80/18 + 27/72 is 347/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 72 is 72
2. For the 1st fraction, since 18 × 4 = 72,
   80/18 = 80 × 4/18 × 4 = 320/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   27/72 = 27 × 1/72 × 1 = 27/72
4. Add the two fractions:
   320/72 + 27/72 = 320 + 27/72 = 347/72
5. So, 80/18 + 27/72 = 347/72
   In mixed form: 459/72

MathStep (Works offline)

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

Related: ⁸⁰/₁₈+⁵⁴/₇₂ ⁸⁰/₃₆+²⁷/₇₂ ⁸⁰/₁₈+⁸¹/₇₂ ⁸⁰/₅₄+²⁷/₇₂ ⁸⁰/₉₀+²⁷/₇₂

Add Fractions Calculator