Answers

Add 70/18 and 80/35

1^st number: 3 16/18, 2^nd number: 2 10/35

70/18 + 80/35 is 389/63.

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,
   70/18 = 70 × 35/18 × 35 = 2450/630
3. Likewise, for the 2nd fraction, since 35 × 18 = 630,
   80/35 = 80 × 18/35 × 18 = 1440/630
4. Add the two like fractions:
   2450/630 + 1440/630 = 2450 + 1440/630 = 3890/630
5. 3890/630 simplified gives 389/63
6. So, 70/18 + 80/35 = 389/63
   In mixed form: 611/63

MathStep (Works offline)

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

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

Add Fractions Calculator