Answers

Add 24/21 and 7/15

1^st number: 1 3/21, 2^nd number: 7/15

24/21 + 7/15 is 169/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 15 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   24/21 = 24 × 5/21 × 5 = 120/105
3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
   7/15 = 7 × 7/15 × 7 = 49/105
4. Add the two like fractions:
   120/105 + 49/105 = 120 + 49/105 = 169/105
5. So, 24/21 + 7/15 = 169/105
   In mixed form: 164/105

MathStep (Works offline)

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

Related: ⁴⁸/₂₁+⁷/₁₅ ²⁴/₂₁+¹⁴/₁₅ ²⁴/₄₂+⁷/₁₅ ²⁴/₂₁+⁷/₃₀ ⁷²/₂₁+⁷/₁₅ ²⁴/₂₁+²¹/₁₅ ²⁴/₆₃+⁷/₁₅ ²⁴/₂₁+⁷/₄₅ ²⁴/₂₁+³⁵/₁₅ ²⁴/₂₁+⁷/₇₅ ²⁴/₂₁+⁴⁹/₁₅

Add Fractions Calculator