Answers

Add 84/3 and 42/45

1^st number: 28 0/3, 2^nd number: 42/45

84/3 + 42/45 is 434/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 45 is 45
   
   Next, find the equivalent fraction of both fractional numbers with denominator 45
2. For the 1st fraction, since 3 × 15 = 45,
   84/3 = 84 × 15/3 × 15 = 1260/45
3. Likewise, for the 2nd fraction, since 45 × 1 = 45,
   42/45 = 42 × 1/45 × 1 = 42/45
4. Add the two like fractions:
   1260/45 + 42/45 = 1260 + 42/45 = 1302/45
5. 1302/45 simplified gives 434/15
6. So, 84/3 + 42/45 = 434/15
   In mixed form: 2814/15

MathStep (Works offline)

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

Related: ⁸⁴/₃+⁸⁴/₄₅ ⁸⁴/₆+⁴²/₄₅ ⁸⁴/₃+⁴²/₉₀ ⁸⁴/₉+⁴²/₄₅ ⁸⁴/₁₅+⁴²/₄₅ ⁸⁴/₂₁+⁴²/₄₅

Add Fractions Calculator