Answers

Add 42/10 and 6/84

1^st number: 4 2/10, 2^nd number: 6/84

42/10 + 6/84 is 299/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 84 is 420
2. For the 1st fraction, since 10 × 42 = 420,
   42/10 = 42 × 42/10 × 42 = 1764/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   6/84 = 6 × 5/84 × 5 = 30/420
4. Add the two fractions:
   1764/420 + 30/420 = 1764 + 30/420 = 1794/420
5. 1794/420 simplified gives 299/70
6. So, 42/10 + 6/84 = 299/70
   In mixed form: 419/70

MathStep (Works offline)

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

Related: ⁸⁴/₁₀+⁶/₈₄ ⁴²/₁₀+¹²/₈₄ ⁴²/₂₀+⁶/₈₄ ⁴²/₁₀+¹⁸/₈₄ ⁴²/₃₀+⁶/₈₄ ⁴²/₁₀+³⁰/₈₄ ⁴²/₅₀+⁶/₈₄ ⁴²/₁₀+⁴²/₈₄ ⁴²/₇₀+⁶/₈₄

Add Fractions Calculator