Add 72/54 and 10/90
1st number: 1 18/54, 2nd number: 10/90
72/54 + 10/90 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
72/54 = 72 × 5/54 × 5 = 360/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
10/90 = 10 × 3/90 × 3 = 30/270 - Add the two like fractions:
360/270 + 30/270 = 360 + 30/270 = 390/270 - 390/270 simplified gives 13/9
- So, 72/54 + 10/90 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/54+20/90 72/54+30/90 72/54+50/90 72/54+70/90