Answers

Add 72/20 and 14/70

1^st number: 3 12/20, 2^nd number: 14/70

72/20 + 14/70 is 19/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   72/20 = 72 × 7/20 × 7 = 504/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   14/70 = 14 × 2/70 × 2 = 28/140
4. Add the two like fractions:
   504/140 + 28/140 = 504 + 28/140 = 532/140
5. 532/140 simplified gives 19/5
6. So, 72/20 + 14/70 = 19/5
   In mixed form: 34/5

MathStep (Works offline)

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

Related: ⁷²/₂₀+²⁸/₇₀ ⁷²/₄₀+¹⁴/₇₀ ⁷²/₂₀+⁴²/₇₀ ⁷²/₆₀+¹⁴/₇₀ ⁷²/₂₀+⁹⁸/₇₀

Add Fractions Calculator