Add 6/20 and 4/72
6/20 + 4/72 is 16/45.
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,
6/20 = 6 × 18/20 × 18 = 108/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Add the two like fractions:
108/360 + 20/360 = 108 + 20/360 = 128/360 - 128/360 simplified gives 16/45
- So, 6/20 + 4/72 = 16/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20+4/72 6/20+8/72 6/40+4/72 18/20+4/72 6/20+12/72 6/60+4/72 30/20+4/72 6/20+20/72 42/20+4/72 6/20+28/72