Answers

Add 35/20 and 42/90

1^st number: 1 15/20, 2^nd number: 42/90

35/20 + 42/90 is 133/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   35/20 = 35 × 9/20 × 9 = 315/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   42/90 = 42 × 2/90 × 2 = 84/180
4. Add the two like fractions:
   315/180 + 84/180 = 315 + 84/180 = 399/180
5. 399/180 simplified gives 133/60
6. So, 35/20 + 42/90 = 133/60
   In mixed form: 213/60

MathStep (Works offline)

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

Related: ⁷⁰/₂₀+⁴²/₉₀ ³⁵/₂₀+⁸⁴/₉₀ ³⁵/₄₀+⁴²/₉₀ ³⁵/₆₀+⁴²/₉₀

Add Fractions Calculator