Answers

Add 7/54 and 90/42

1^st number: 7/54, 2^nd number: 2 6/42

7/54 + 90/42 is 859/378.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 42 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   7/54 = 7 × 7/54 × 7 = 49/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   90/42 = 90 × 9/42 × 9 = 810/378
4. Add the two like fractions:
   49/378 + 810/378 = 49 + 810/378 = 859/378
5. So, 7/54 + 90/42 = 859/378
   In mixed form: 2103/378

MathStep (Works offline)

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

Related: ¹⁴/₅₄+⁹⁰/₄₂ ⁷/₅₄+⁹⁰/₈₄ ²¹/₅₄+⁹⁰/₄₂ ³⁵/₅₄+⁹⁰/₄₂ ⁴⁹/₅₄+⁹⁰/₄₂

Add Fractions Calculator