Answers

Add 15/98 and 28/7

1^st number: 15/98, 2^nd number: 4 0/7

15/98 + 28/7 is 407/98.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 7 is 98
   
   Next, find the equivalent fraction of both fractional numbers with denominator 98
2. For the 1st fraction, since 98 × 1 = 98,
   15/98 = 15 × 1/98 × 1 = 15/98
3. Likewise, for the 2nd fraction, since 7 × 14 = 98,
   28/7 = 28 × 14/7 × 14 = 392/98
4. Add the two like fractions:
   15/98 + 392/98 = 15 + 392/98 = 407/98
5. So, 15/98 + 28/7 = 407/98
   In mixed form: 415/98

MathStep (Works offline)

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

Related: ³⁰/₉₈+²⁸/₇ ¹⁵/₉₈+⁵⁶/₇ ¹⁵/₉₈+²⁸/₁₄ ⁴⁵/₉₈+²⁸/₇ ¹⁵/₉₈+⁸⁴/₇ ¹⁵/₉₈+²⁸/₂₁ ⁷⁵/₉₈+²⁸/₇ ¹⁵/₉₈+²⁸/₃₅ ¹⁵/₉₈+²⁸/₄₉

Add Fractions Calculator