Answers

Add 81/7 and 75/54

1^st number: 11 4/7, 2^nd number: 1 21/54

81/7 + 75/54 is 1633/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 7 × 54 = 378,
   81/7 = 81 × 54/7 × 54 = 4374/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   75/54 = 75 × 7/54 × 7 = 525/378
4. Add the two like fractions:
   4374/378 + 525/378 = 4374 + 525/378 = 4899/378
5. 4899/378 simplified gives 1633/126
6. So, 81/7 + 75/54 = 1633/126
   In mixed form: 12121/126

MathStep (Works offline)

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

Related: ⁸¹/₁₄+⁷⁵/₅₄ ⁸¹/₂₁+⁷⁵/₅₄ ⁸¹/₃₅+⁷⁵/₅₄ ⁸¹/₄₉+⁷⁵/₅₄

Add Fractions Calculator