Answers

Add 30/56 and 72/45

1^st number: 30/56, 2^nd number: 1 27/45

30/56 + 72/45 is 299/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 45 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 56 × 45 = 2520,
   30/56 = 30 × 45/56 × 45 = 1350/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   72/45 = 72 × 56/45 × 56 = 4032/2520
4. Add the two like fractions:
   1350/2520 + 4032/2520 = 1350 + 4032/2520 = 5382/2520
5. 5382/2520 simplified gives 299/140
6. So, 30/56 + 72/45 = 299/140
   In mixed form: 219/140

MathStep (Works offline)

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

Related: ⁶⁰/₅₆+⁷²/₄₅ ³⁰/₅₆+⁷²/₉₀ ⁹⁰/₅₆+⁷²/₄₅

Add Fractions Calculator