Answers

Add 12/70 and 84/60

1^st number: 12/70, 2^nd number: 1 24/60

12/70 + 84/60 is 11/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   12/70 = 12 × 6/70 × 6 = 72/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   84/60 = 84 × 7/60 × 7 = 588/420
4. Add the two like fractions:
   72/420 + 588/420 = 72 + 588/420 = 660/420
5. 660/420 simplified gives 11/7
6. So, 12/70 + 84/60 = 11/7
   In mixed form: 14/7

MathStep (Works offline)

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

Related: ²⁴/₇₀+⁸⁴/₆₀ ³⁶/₇₀+⁸⁴/₆₀ ⁶⁰/₇₀+⁸⁴/₆₀ ⁸⁴/₇₀+⁸⁴/₆₀

Add Fractions Calculator