Answers

Add 72/36 and 27/90

1^st number: 2 0/36, 2^nd number: 27/90

72/36 + 27/90 is 23/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   72/36 = 72 × 5/36 × 5 = 360/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   27/90 = 27 × 2/90 × 2 = 54/180
4. Add the two like fractions:
   360/180 + 54/180 = 360 + 54/180 = 414/180
5. 414/180 simplified gives 23/10
6. So, 72/36 + 27/90 = 23/10
   In mixed form: 23/10

MathStep (Works offline)

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

Related: ⁷²/₃₆+⁵⁴/₉₀ ⁷²/₃₆+⁸¹/₉₀

Add Fractions Calculator