Answers

Add 10/8 and 54/80

1^st number: 1 2/8, 2^nd number: 54/80

10/8 + 54/80 is 77/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 8 × 10 = 80,
   10/8 = 10 × 10/8 × 10 = 100/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   54/80 = 54 × 1/80 × 1 = 54/80
4. Add the two like fractions:
   100/80 + 54/80 = 100 + 54/80 = 154/80
5. 154/80 simplified gives 77/40
6. So, 10/8 + 54/80 = 77/40
   In mixed form: 137/40

MathStep (Works offline)

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

Related: ²⁰/₈+⁵⁴/₈₀ ¹⁰/₁₆+⁵⁴/₈₀ ³⁰/₈+⁵⁴/₈₀ ¹⁰/₂₄+⁵⁴/₈₀ ⁵⁰/₈+⁵⁴/₈₀ ¹⁰/₄₀+⁵⁴/₈₀ ⁷⁰/₈+⁵⁴/₈₀ ¹⁰/₅₆+⁵⁴/₈₀

Add Fractions Calculator