Add 18/20 and 5/72
18/20 + 5/72 is 349/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
18/20 = 18 × 18/20 × 18 = 324/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
5/72 = 5 × 5/72 × 5 = 25/360 - Add the two like fractions:
324/360 + 25/360 = 324 + 25/360 = 349/360 - So, 18/20 + 5/72 = 349/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20+5/72 18/20+10/72 18/40+5/72 54/20+5/72 18/20+15/72 18/60+5/72 90/20+5/72 18/20+25/72 18/20+35/72