Answers

Add 12/54 and 75/40

1^st number: 12/54, 2^nd number: 1 35/40

12/54 + 75/40 is 151/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 54 × 20 = 1080,
   12/54 = 12 × 20/54 × 20 = 240/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   75/40 = 75 × 27/40 × 27 = 2025/1080
4. Add the two like fractions:
   240/1080 + 2025/1080 = 240 + 2025/1080 = 2265/1080
5. 2265/1080 simplified gives 151/72
6. So, 12/54 + 75/40 = 151/72
   In mixed form: 27/72

MathStep (Works offline)

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

Related: ²⁴/₅₄+⁷⁵/₄₀ ¹²/₅₄+⁷⁵/₈₀ ³⁶/₅₄+⁷⁵/₄₀ ⁶⁰/₅₄+⁷⁵/₄₀ ⁸⁴/₅₄+⁷⁵/₄₀

Add Fractions Calculator