Answers

Add 81/28 and 3/70

1^st number: 2 25/28, 2^nd number: 3/70

81/28 + 3/70 is 411/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 28 × 5 = 140,
   81/28 = 81 × 5/28 × 5 = 405/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   3/70 = 3 × 2/70 × 2 = 6/140
4. Add the two like fractions:
   405/140 + 6/140 = 405 + 6/140 = 411/140
5. So, 81/28 + 3/70 = 411/140
   In mixed form: 2131/140

MathStep (Works offline)

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

Related: ⁸¹/₂₈+⁶/₇₀ ⁸¹/₅₆+³/₇₀ ⁸¹/₂₈+⁹/₇₀ ⁸¹/₈₄+³/₇₀ ⁸¹/₂₈+¹⁵/₇₀ ⁸¹/₂₈+²¹/₇₀

Add Fractions Calculator