Answers

Add 2/40 and 54/90

2/40 + 54/90 is 13/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   2/40 = 2 × 9/40 × 9 = 18/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   54/90 = 54 × 4/90 × 4 = 216/360
4. Add the two like fractions:
   18/360 + 216/360 = 18 + 216/360 = 234/360
5. 234/360 simplified gives 13/20
6. So, 2/40 + 54/90 = 13/20

MathStep (Works offline)

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

Related: ⁴/₄₀+⁵⁴/₉₀ ²/₈₀+⁵⁴/₉₀ ⁶/₄₀+⁵⁴/₉₀ ¹⁰/₄₀+⁵⁴/₉₀ ¹⁴/₄₀+⁵⁴/₉₀

Add Fractions Calculator