Add 2/72 and 45/20
1st number: 2/72, 2nd number: 2 5/20
2/72 + 45/20 is 41/18.
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,
2/72 = 2 × 5/72 × 5 = 10/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
45/20 = 45 × 18/20 × 18 = 810/360 - Add the two like fractions:
10/360 + 810/360 = 10 + 810/360 = 820/360 - 820/360 simplified gives 41/18
- So, 2/72 + 45/20 = 41/18
In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72+45/20 2/72+90/20 2/72+45/40 6/72+45/20 2/72+45/60 10/72+45/20 14/72+45/20