Answers

Add 70/14 and 15/90

1^st number: 5 0/14, 2^nd number: 15/90

70/14 + 15/90 is 31/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   70/14 = 70 × 45/14 × 45 = 3150/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   15/90 = 15 × 7/90 × 7 = 105/630
4. Add the two like fractions:
   3150/630 + 105/630 = 3150 + 105/630 = 3255/630
5. 3255/630 simplified gives 31/6
6. So, 70/14 + 15/90 = 31/6
   In mixed form: 51/6

MathStep (Works offline)

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

Related: ⁷⁰/₁₄+³⁰/₉₀ ⁷⁰/₂₈+¹⁵/₉₀ ⁷⁰/₁₄+⁴⁵/₉₀ ⁷⁰/₄₂+¹⁵/₉₀ ⁷⁰/₁₄+⁷⁵/₉₀ ⁷⁰/₉₈+¹⁵/₉₀

Add Fractions Calculator