Add 30/72 and 5/20
30/72 + 5/20 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
5/20 = 5 × 18/20 × 18 = 90/360 - Add the two like fractions:
150/360 + 90/360 = 150 + 90/360 = 240/360 - 240/360 simplified gives 2/3
- So, 30/72 + 5/20 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+5/20 30/72+10/20 30/72+5/40 90/72+5/20 30/72+15/20 30/72+5/60 30/72+25/20 30/72+35/20