Answers

Add 72/15 and 49/40

1^st number: 4 12/15, 2^nd number: 1 9/40

72/15 + 49/40 is 241/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 15 × 8 = 120,
   72/15 = 72 × 8/15 × 8 = 576/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   49/40 = 49 × 3/40 × 3 = 147/120
4. Add the two like fractions:
   576/120 + 147/120 = 576 + 147/120 = 723/120
5. 723/120 simplified gives 241/40
6. So, 72/15 + 49/40 = 241/40
   In mixed form: 61/40

MathStep (Works offline)

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

Related: ⁷²/₁₅+⁹⁸/₄₀ ⁷²/₃₀+⁴⁹/₄₀ ⁷²/₁₅+⁴⁹/₈₀ ⁷²/₄₅+⁴⁹/₄₀ ⁷²/₇₅+⁴⁹/₄₀

Add Fractions Calculator