Answers

Add 63/12 and 56/45

1^st number: 5 3/12, 2^nd number: 1 11/45

63/12 + 56/45 is 1169/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   63/12 = 63 × 15/12 × 15 = 945/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   56/45 = 56 × 4/45 × 4 = 224/180
4. Add the two like fractions:
   945/180 + 224/180 = 945 + 224/180 = 1169/180
5. So, 63/12 + 56/45 = 1169/180
   In mixed form: 689/180

MathStep (Works offline)

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

Related: ⁶³/₂₄+⁵⁶/₄₅ ⁶³/₁₂+⁵⁶/₉₀ ⁶³/₃₆+⁵⁶/₄₅ ⁶³/₆₀+⁵⁶/₄₅ ⁶³/₈₄+⁵⁶/₄₅

Add Fractions Calculator