Answers

Add 7/45 and 54/12

1^st number: 7/45, 2^nd number: 4 6/12

7/45 + 54/12 is 419/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 12 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 45 × 4 = 180,
   7/45 = 7 × 4/45 × 4 = 28/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   54/12 = 54 × 15/12 × 15 = 810/180
4. Add the two like fractions:
   28/180 + 810/180 = 28 + 810/180 = 838/180
5. 838/180 simplified gives 419/90
6. So, 7/45 + 54/12 = 419/90
   In mixed form: 459/90

MathStep (Works offline)

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

Related: ¹⁴/₄₅+⁵⁴/₁₂ ⁷/₉₀+⁵⁴/₁₂ ⁷/₄₅+⁵⁴/₂₄ ²¹/₄₅+⁵⁴/₁₂ ⁷/₄₅+⁵⁴/₃₆ ³⁵/₄₅+⁵⁴/₁₂ ⁷/₄₅+⁵⁴/₆₀ ⁴⁹/₄₅+⁵⁴/₁₂ ⁷/₄₅+⁵⁴/₈₄

Add Fractions Calculator