Answers

Add 84/30 and 54/28

1^st number: 2 24/30, 2^nd number: 1 26/28

84/30 + 54/28 is 331/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 28 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 30 × 14 = 420,
   84/30 = 84 × 14/30 × 14 = 1176/420
3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
   54/28 = 54 × 15/28 × 15 = 810/420
4. Add the two like fractions:
   1176/420 + 810/420 = 1176 + 810/420 = 1986/420
5. 1986/420 simplified gives 331/70
6. So, 84/30 + 54/28 = 331/70
   In mixed form: 451/70

MathStep (Works offline)

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

Related: ⁸⁴/₆₀+⁵⁴/₂₈ ⁸⁴/₃₀+⁵⁴/₅₆ ⁸⁴/₉₀+⁵⁴/₂₈ ⁸⁴/₃₀+⁵⁴/₈₄

Add Fractions Calculator