Answers

Add 70/18 and 15/70

1^st number: 3 16/18, 2^nd number: 15/70

70/18 + 15/70 is 517/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 70 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 70 × 9 = 630,
   15/70 = 15 × 9/70 × 9 = 135/630
4. Add the two like fractions:
   2450/630 + 135/630 = 2450 + 135/630 = 2585/630
5. 2585/630 simplified gives 517/126
6. So, 70/18 + 15/70 = 517/126
   In mixed form: 413/126

MathStep (Works offline)

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

Related: ⁷⁰/₁₈+³⁰/₇₀ ⁷⁰/₃₆+¹⁵/₇₀ ⁷⁰/₁₈+⁴⁵/₇₀ ⁷⁰/₅₄+¹⁵/₇₀ ⁷⁰/₁₈+⁷⁵/₇₀ ⁷⁰/₉₀+¹⁵/₇₀

Add Fractions Calculator