Answers

Add 15/8 and 4/42

1^st number: 1 7/8, 2^nd number: 4/42

15/8 + 4/42 is 331/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 42 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 8 × 21 = 168,
   15/8 = 15 × 21/8 × 21 = 315/168
3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
   4/42 = 4 × 4/42 × 4 = 16/168
4. Add the two like fractions:
   315/168 + 16/168 = 315 + 16/168 = 331/168
5. So, 15/8 + 4/42 = 331/168
   In mixed form: 1163/168

MathStep (Works offline)

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

Related: ³⁰/₈+⁴/₄₂ ¹⁵/₈+⁸/₄₂ ¹⁵/₁₆+⁴/₄₂ ¹⁵/₈+⁴/₈₄ ⁴⁵/₈+⁴/₄₂ ¹⁵/₈+¹²/₄₂ ¹⁵/₂₄+⁴/₄₂ ⁷⁵/₈+⁴/₄₂ ¹⁵/₈+²⁰/₄₂ ¹⁵/₄₀+⁴/₄₂ ¹⁵/₈+²⁸/₄₂ ¹⁵/₅₆+⁴/₄₂

Add Fractions Calculator