Answers

Add 84/16 and 42/40

1^st number: 5 4/16, 2^nd number: 1 2/40

84/16 + 42/40 is 63/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 40 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   84/16 = 84 × 5/16 × 5 = 420/80
3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
   42/40 = 42 × 2/40 × 2 = 84/80
4. Add the two like fractions:
   420/80 + 84/80 = 420 + 84/80 = 504/80
5. 504/80 simplified gives 63/10
6. So, 84/16 + 42/40 = 63/10
   In mixed form: 63/10

MathStep (Works offline)

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

Related: ⁸⁴/₁₆+⁸⁴/₄₀ ⁸⁴/₃₂+⁴²/₄₀ ⁸⁴/₁₆+⁴²/₈₀ ⁸⁴/₄₈+⁴²/₄₀ ⁸⁴/₈₀+⁴²/₄₀

Add Fractions Calculator