Answers

Add 56/15 and 21/60

1^st number: 3 11/15, 2^nd number: 21/60

56/15 + 21/60 is 49/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 15 × 4 = 60,
   56/15 = 56 × 4/15 × 4 = 224/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   21/60 = 21 × 1/60 × 1 = 21/60
4. Add the two like fractions:
   224/60 + 21/60 = 224 + 21/60 = 245/60
5. 245/60 simplified gives 49/12
6. So, 56/15 + 21/60 = 49/12
   In mixed form: 41/12

MathStep (Works offline)

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

Related: ⁵⁶/₁₅+⁴²/₆₀ ⁵⁶/₃₀+²¹/₆₀ ⁵⁶/₁₅+⁶³/₆₀ ⁵⁶/₄₅+²¹/₆₀ ⁵⁶/₇₅+²¹/₆₀

Add Fractions Calculator