Answers

Add 84/70 and 12/45

1^st number: 1 14/70, 2^nd number: 12/45

84/70 + 12/45 is 22/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   84/70 = 84 × 9/70 × 9 = 756/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   12/45 = 12 × 14/45 × 14 = 168/630
4. Add the two like fractions:
   756/630 + 168/630 = 756 + 168/630 = 924/630
5. 924/630 simplified gives 22/15
6. So, 84/70 + 12/45 = 22/15
   In mixed form: 17/15

MathStep (Works offline)

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

Related: ⁸⁴/₇₀+²⁴/₄₅ ⁸⁴/₇₀+¹²/₉₀ ⁸⁴/₇₀+³⁶/₄₅ ⁸⁴/₇₀+⁶⁰/₄₅ ⁸⁴/₇₀+⁸⁴/₄₅

Add Fractions Calculator