Answers

Add 70/63 and 12/18

1^st number: 1 7/63, 2^nd number: 12/18

70/63 + 12/18 is 16/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   12/18 = 12 × 7/18 × 7 = 84/126
4. Add the two like fractions:
   140/126 + 84/126 = 140 + 84/126 = 224/126
5. 224/126 simplified gives 16/9
6. So, 70/63 + 12/18 = 16/9
   In mixed form: 17/9

MathStep (Works offline)

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

Related: ⁷⁰/₆₃+²⁴/₁₈ ⁷⁰/₆₃+¹²/₃₆ ⁷⁰/₆₃+³⁶/₁₈ ⁷⁰/₆₃+¹²/₅₄ ⁷⁰/₆₃+⁶⁰/₁₈ ⁷⁰/₆₃+¹²/₉₀ ⁷⁰/₆₃+⁸⁴/₁₈

Add Fractions Calculator