Answers

Add 15/40 and 64/30

1^st number: 15/40, 2^nd number: 2 4/30

15/40 + 64/30 is 301/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   15/40 = 15 × 3/40 × 3 = 45/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   64/30 = 64 × 4/30 × 4 = 256/120
4. Add the two like fractions:
   45/120 + 256/120 = 45 + 256/120 = 301/120
5. So, 15/40 + 64/30 = 301/120
   In mixed form: 261/120

MathStep (Works offline)

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

Related: ³⁰/₄₀+⁶⁴/₃₀ ¹⁵/₈₀+⁶⁴/₃₀ ¹⁵/₄₀+⁶⁴/₆₀ ⁴⁵/₄₀+⁶⁴/₃₀ ¹⁵/₄₀+⁶⁴/₉₀ ⁷⁵/₄₀+⁶⁴/₃₀

Add Fractions Calculator