Answers

Add 90/35 and 42/54

1^st number: 2 20/35, 2^nd number: 42/54

90/35 + 42/54 is 211/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 54 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 35 × 54 = 1890,
   90/35 = 90 × 54/35 × 54 = 4860/1890
3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
   42/54 = 42 × 35/54 × 35 = 1470/1890
4. Add the two like fractions:
   4860/1890 + 1470/1890 = 4860 + 1470/1890 = 6330/1890
5. 6330/1890 simplified gives 211/63
6. So, 90/35 + 42/54 = 211/63
   In mixed form: 322/63

MathStep (Works offline)

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

Related: ⁹⁰/₃₅+⁸⁴/₅₄ ⁹⁰/₇₀+⁴²/₅₄

Add Fractions Calculator