Answers

Add 81/54 and 24/63

1^st number: 1 27/54, 2^nd number: 24/63

81/54 + 24/63 is 79/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 63 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   81/54 = 81 × 7/54 × 7 = 567/378
3. Likewise, for the 2nd fraction, since 63 × 6 = 378,
   24/63 = 24 × 6/63 × 6 = 144/378
4. Add the two like fractions:
   567/378 + 144/378 = 567 + 144/378 = 711/378
5. 711/378 simplified gives 79/42
6. So, 81/54 + 24/63 = 79/42
   In mixed form: 137/42

MathStep (Works offline)

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

Related: ⁸¹/₅₄+⁴⁸/₆₃ ⁸¹/₅₄+⁷²/₆₃

Add Fractions Calculator