Answers

Add 90/72 and 5/90

1^st number: 1 18/72, 2^nd number: 5/90

90/72 + 5/90 is 47/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   90/72 = 90 × 5/72 × 5 = 450/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   5/90 = 5 × 4/90 × 4 = 20/360
4. Add the two like fractions:
   450/360 + 20/360 = 450 + 20/360 = 470/360
5. 470/360 simplified gives 47/36
6. So, 90/72 + 5/90 = 47/36
   In mixed form: 111/36

MathStep (Works offline)

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

Related: ⁹⁰/₇₂+¹⁰/₉₀ ⁹⁰/₇₂+¹⁵/₉₀ ⁹⁰/₇₂+²⁵/₉₀ ⁹⁰/₇₂+³⁵/₉₀

Add Fractions Calculator