Answers

Add 90/18 and 80/35

1^st number: 5 0/18, 2^nd number: 2 10/35

90/18 + 80/35 is 51/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 35 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 18 × 35 = 630,
   90/18 = 90 × 35/18 × 35 = 3150/630
3. Likewise, for the 2nd fraction, since 35 × 18 = 630,
   80/35 = 80 × 18/35 × 18 = 1440/630
4. Add the two like fractions:
   3150/630 + 1440/630 = 3150 + 1440/630 = 4590/630
5. 4590/630 simplified gives 51/7
6. So, 90/18 + 80/35 = 51/7
   In mixed form: 72/7

MathStep (Works offline)

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

Related: ⁹⁰/₃₆+⁸⁰/₃₅ ⁹⁰/₁₈+⁸⁰/₇₀ ⁹⁰/₅₄+⁸⁰/₃₅

Add Fractions Calculator