Answers

Add 30/16 and 54/72

1^st number: 1 14/16, 2^nd number: 54/72

30/16 + 54/72 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 72 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 16 × 9 = 144,
   30/16 = 30 × 9/16 × 9 = 270/144
3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
   54/72 = 54 × 2/72 × 2 = 108/144
4. Add the two like fractions:
   270/144 + 108/144 = 270 + 108/144 = 378/144
5. 378/144 simplified gives 21/8
6. So, 30/16 + 54/72 = 21/8
   In mixed form: 25/8

MathStep (Works offline)

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

Related: ⁶⁰/₁₆+⁵⁴/₇₂ ³⁰/₃₂+⁵⁴/₇₂ ⁹⁰/₁₆+⁵⁴/₇₂ ³⁰/₄₈+⁵⁴/₇₂ ³⁰/₈₀+⁵⁴/₇₂

Add Fractions Calculator