Answers

Add 2/72 and 7/90

2/72 + 7/90 is 19/180.

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,
   2/72 = 2 × 5/72 × 5 = 10/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   7/90 = 7 × 4/90 × 4 = 28/360
4. Add the two like fractions:
   10/360 + 28/360 = 10 + 28/360 = 38/360
5. 38/360 simplified gives 19/180
6. So, 2/72 + 7/90 = 19/180

MathStep (Works offline)

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

Related: ⁴/₇₂+⁷/₉₀ ²/₇₂+¹⁴/₉₀ ⁶/₇₂+⁷/₉₀ ²/₇₂+²¹/₉₀ ¹⁰/₇₂+⁷/₉₀ ²/₇₂+³⁵/₉₀ ¹⁴/₇₂+⁷/₉₀ ²/₇₂+⁴⁹/₉₀

Add Fractions Calculator