Answers

Add 8/40 and 75/80

8/40 + 75/80 is 91/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   8/40 = 8 × 2/40 × 2 = 16/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   75/80 = 75 × 1/80 × 1 = 75/80
4. Add the two like fractions:
   16/80 + 75/80 = 16 + 75/80 = 91/80
5. So, 8/40 + 75/80 = 91/80
   In mixed form: 111/80

MathStep (Works offline)

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

Related: ¹⁶/₄₀+⁷⁵/₈₀ ⁸/₈₀+⁷⁵/₈₀ ²⁴/₄₀+⁷⁵/₈₀ ⁵⁶/₄₀+⁷⁵/₈₀

Add Fractions Calculator